Old Advertising Thermometers Hanging in Garages That Dealers Would Buy on Sight

There’s something about an old advertising thermometer that stops you cold. Not because it’s flashy — most of them are faded, chipped, maybe a little warped — but because they manage to carry an entire era on their face.

The logo, the colors, the typeface, the specific way a brand once talked to the public: it’s all still there, frozen in tin and glass.

Serious collectors and antique dealers have known for decades that these pieces move fast, and the right ones move for real money. If you’ve got one hanging in the garage and you’ve never thought twice about it, this is the moment to start thinking.

Coca-Cola Tin Thermometers

Coca-Cola thermometers are the undisputed anchor of this category. A pristine example from the 1920s or 1930s — red background, white script, bottle graphic intact — can fetch several hundred dollars at auction without blinking, and the rarer vertical formats from the 1950s push well past that.

Dealers spot them instantly and rarely pass.

Moxie Soda Thermometers

Moxie is the kind of brand that only collectors truly understand — a regional soda that predates Coca-Cola and carries a cult following fierce enough to sustain its own annual festival in Maine. Its advertising thermometers, often featuring the mustachioed “Moxie Man” or bold orange-and-black graphics, are among the more aggressively hunted pieces in the tin advertising world.

To be fair, supply has always been thin, which makes condition almost secondary to mere existence.

Nehi Soda Thermometers

Nehi thermometers have a color problem — in the best possible way. The grape, orange, and strawberry variants were produced in vivid hues that photograph beautifully and hold up surprisingly well, and a dealer who spots one with minimal paint loss will not walk away.

The brand’s regional loyalty means pieces surface most often in the South and Midwest, usually in old general stores or feed supply buildings, still hung where someone put them in 1948.

Dr Pepper Thermometers

Dr Pepper has always been a little different from the rest of the soda advertising universe, and its thermometers reflect that — the color palette shifted across decades, moving through greens, reds, and blacks, and the “10-2-4” clock motif appears on some of the most collectible examples. A well-preserved 1940s example in original condition is the kind of thing a dealer picks up without negotiating very hard. So the opening ask matters if you’re the one selling.

Sunbeam Bread Thermometers

Little Miss Sunbeam is one of the most recognized mascots in American commercial history, and her face on a porcelain or tin thermometer translates directly to collector demand. The pieces from the 1950s — particularly those featuring the bread-slice graphic alongside the girl’s curly-haired image — have a warmth to them (the imagery, not the thermometer) that makes them genuinely difficult to leave on a shelf.

Dealers know that kitchen and bakery advertising is a category that never cools off.

Orange Crush Thermometers

Orange Crush thermometers wear their age well, which is partly a function of the orange colorway holding up better than softer tones over time. The bubble-letter logo and the stylized orange graphic are immediately legible even on pieces with some surface rust, and legibility drives value in this category more than almost anything else.

A dealer can see what it is from across the room, and that’s half the sale right there.

Hires Root Beer Thermometers

Hires has the distinction of being the first commercially marketed root beer in the United States, and its advertising pieces carry that historical weight. Thermometers from the late 19th and early 20th centuries — the ones with the older serif typography and the mugs-and-foam graphics — are legitimately rare, and rarity in advertising thermometers functions the way scarcity always does: it makes otherwise patient people impulsive.

Dealers who know the brand know exactly what they’re looking at.

Bireley’s Orange Thermometers

Bireley’s is a name that draws blank stares from most people under sixty, which is precisely what makes its thermometers valuable — the brand’s regional distribution and early decline means that surviving advertising pieces are scarcer than their major-label competitors. The thermometers featured clean mid-century graphics with the kind of optimistic color work that defines postwar American design.

Finding one intact is genuinely uncommon, and dealers treat uncommon as a compliment.

Sauer’s Extracts Thermometers

Sauer’s, the Virginia-based spice and extract company founded in 1887, produced advertising thermometers with a restrained elegance that sits apart from the louder soda and gasoline pieces. Deep reds, clean gold text, and a general confidence in the brand’s own reputation — these pieces look like they were made to last, and many of them did.

Country store collectors in particular will chase a clean Sauer’s thermometer with real commitment.

Mobiloil Thermometers

A Mobiloil thermometer with the Pegasus logo in clean condition is the kind of piece that petroleum advertising collectors do not pass up. The flying red horse is one of the most iconic commercial symbols of the 20th century, and its appearance on a garage or service station thermometer connects the object to an entire culture of roadside Americana — the era of full-service stations, attendants in uniforms, and oil changes as a neighborhood ritual.

That culture is gone, which is exactly why the artifacts from it keep climbing in value.

Standard Oil Thermometers

Standard Oil fractured into so many regional successors — Esso, Amoco, Sohio, among others — that thermometers bearing the original Standard name carry a historical specificity that regional variants don’t. The torch logo pieces are especially sought after, and the condition standards for petroleum advertising are slightly more forgiving than for soda or food brands, because garages and filling stations were genuinely hard on anything hung on the wall.

A dealer buying for a petroleum collection takes condition into account but doesn’t let it kill the deal.

Prestone Antifreeze Thermometers

There’s a particular irony in a thermometer advertising antifreeze, and the Prestone pieces lean into it with graphics that feature winter imagery alongside the product name in bold, cold-weather colors. These were made for garages and service bays, which means they survived in those environments and still turn up there today.

Dealers focused on automotive advertising buy them as supporting pieces — not headline items, but reliable sellers that fill out a collection.

Squirt Soda Thermometers

Squirt thermometers, featuring the cartoon boy character and the grapefruit-forward branding, have a playfulness that holds up across generations. The 1950s and 1960s examples with the green and yellow colorway are the most desirable, and the condition of the cartoon graphic is usually the deciding factor — fading on the mascot drops value sharply, while a crisp example commands a genuine premium.

Turns out, cartoon mascots on tin age like fine art when they’re treated right.

Hamm’s Beer Thermometers

Hamm’s, born in St. Paul and beloved across the upper Midwest and Pacific Northwest, produced thermometers that are deeply regional in character — the sky-blue and white palette, the bear mascot, the “Land of Sky Blue Waters” visual language. That regionalism actually amplifies collector interest rather than limiting it, because Hamm’s pieces carry a geographic loyalty that purely national brands don’t inspire.

A dealer who grew up seeing the Hamm’s bear on TV in the 1960s will pay for the memory, and pay willingly.

Grapette Soda Thermometers

Grapette is another regional brand — Arkansas-born, distributed across the South and border states — whose advertising thermometers surface infrequently enough to generate real excitement when they do. The deep purple colorway with white and gold lettering is visually striking and has aged well on surviving examples, and the brand’s obscurity to anyone outside its distribution footprint makes the pieces feel like discoveries rather than purchases.

Dealers who specialize in soft drink advertising collect Grapette with something close to affection.

Royal Crown Cola Thermometers

RC Cola has always operated in Coca-Cola’s shadow, which is commercially unfortunate but historically useful — because the brand’s advertising pieces are underpriced relative to their actual quality and rarity. RC thermometers from the 1940s and 1950s feature strong graphic design, bold colors, and the bottle silhouette in configurations that rival anything the bigger brands produced.

Dealers know that the gap between RC’s recognition and its actual value is a buying opportunity, and they don’t leave it on the table.

NuGrape Soda Thermometers

NuGrape thermometers occupy a quiet corner of the grape soda category that Nehi dominates in name recognition, but in collector circles the NuGrape pieces — particularly those featuring the art deco bottle graphics from the 1930s — hold their own with some authority. The Atlanta-based brand’s distribution was wide enough that thermometers surface across the Southeast with some regularity, but clean examples are reliably scarce.

And scarce, in this market, is another word for desirable.

Red Goose Shoes Thermometers

Red Goose Shoes is the kind of brand that requires no explanation to anyone who remembers it, and no introduction is warm enough for those who don’t. The bright red goose mascot on a white or cream background is visually arresting in a way that most shoe advertising never managed, and the thermometers featuring it have a charm that crosses demographic lines — they appeal to shoe collectors, advertising collectors, and general Americana enthusiasts simultaneously.

That broad appeal is exactly what makes dealers eager buyers.

DeLaval Cream Separators Thermometers

DeLaval advertising pieces are the quiet giants of the farm and dairy advertising category — the brand equipped American farms for generations, and its thermometers carry that utilitarian authority. The cream separator graphics, the green and white colorway, the straightforward sans-serif lettering: everything about these pieces signals function over spectacle.

Dealers who work the farm auction and country store circuit know a DeLaval thermometer as a reliable find, not a glamorous one — but reliable pays just as well.

7UP Thermometers

7UP thermometers went through enough visual identities across the mid-20th century that collectors have developed strong preferences within the brand’s own catalog. The “Fresh Up” era pieces from the late 1940s and early 1950s — featuring the dot characters called Spot before the brand phased them out — are the most aggressively pursued, while the later green-and-white bottle graphics are desirable but more common.

A dealer who knows 7UP advertising will ask about the era before they ask about the price.

Wrigley’s Gum Thermometers

Wrigley’s advertising thermometers are an unusual entry in this category because the brand’s success was so total that it could afford to put its name on almost anything — which means surviving examples span a wide range of quality, format, and era. The pieces featuring the spearmint and Juicy Fruit branding in their classic green and yellow colorways are the most collected, particularly the diecut and shaped examples that go beyond the standard rectangle format.

Condition requirements are strict here: Wrigley collectors are not the forgiving type.

Esso Thermometers

Esso’s “Put a Tiger in Your Tank” campaign from the 1960s generated some of the most immediately recognizable advertising graphics in American commercial history, and thermometers from that era wearing the tiger imagery are among the most liquid pieces in petroleum advertising — meaning a dealer finds a buyer without much effort. Earlier Esso pieces with the oval logo and simpler graphics appeal to a different collector profile, one more interested in the mid-century service station aesthetic than the specific campaign. Both sell.

Mason’s Root Beer Thermometers

Mason’s Root Beer is the deep cut in this category — a brand that most people outside the Midwest have never encountered, and whose advertising pieces surface so rarely that dealers who specialize in root beer and soda fountain advertising will drive significant distances to examine one. The brown and cream colorway with the frosted mug graphic is distinctive enough to be identifiable even in poor light, which matters in the garage and barn environments where these pieces most often turn up.

So yes — they would buy it on sight.

When the Mercury Still Means Something

The garage wall has always been a kind of unintentional museum — stuff hung there because it needed a home, or because it seemed like it might be useful someday, and then decades passed and the useful became the irreplaceable. An old advertising thermometer isn’t just a relic of a brand; it’s a document of how commerce once spoke to people, casually and confidently, on walls they passed every day without thinking about it.

The dealers who buy these pieces on sight understand something that isn’t always obvious: the value was never really in the temperature reading. It was in everything surrounding it.

More from Home As We Make It

Like Home As We Make It‘s content? Follow us on MSN.