Original vintage advertising signs are worth approximately $50 to several thousand dollars, depending mostly on what they are made of, which brand they advertise and their condition, while the reproductions that fill flea markets and online shops are worth $10-40. Porcelain enamel signs, made by fusing layers of glass onto heavy steel, bring the most: common originals sell for $100-500, and gas and oil, soda and tobacco signs from sought-after brands in strong condition often sell for $1,000-10,000 and occasionally far more. Lithographed tin signs usually bring $50-500, and cardboard signs $20-300. Because the top of the market is so high, reproductions and outright fakes are everywhere, and telling them apart is the first job.
Weight, surface, edges, mounting holes and a maker's mark along the bottom edge answer most of the question.
Quick answer
- Reproduction metal signs, including most "aged" looking ones: $10-40.
- Original tin and cardboard signs: $20-500 for most, more for rare brands and images.
- Original porcelain signs: $100-500 common, $1,000-10,000+ for top gas, oil, soda and tobacco brands.
How to check yours, step by step
- Lift it. Porcelain signs are made on heavy gauge steel and feel noticeably heavy for their size. A thin, light, flexible sheet is tin or a modern print. Hold the sign by one edge; an original porcelain sign feels rigid and barely flexes.
- Look at the surface at an angle. Porcelain has a deep glassy shine. Tin has a printed painted surface with less depth. Modern reproductions are often digitally printed or screen printed on thin steel or aluminum with a flat, even look.
- Run a fingertip across the color boundaries. On original porcelain signs, each color was applied and fired as a separate layer, so you can feel slight steps between colors. Collectors call this shelving or layering. A perfectly flat surface where colors meet is a warning sign on a supposed porcelain sign.
- Check the edges and the back. Original porcelain usually has enamel on the back too, often in a single color, and the edges are coated. Look at chips: on porcelain a chip shows dark steel underneath, often with rust that has had decades to form.
- Find the maker's mark. Look along the bottom edge of the face, in small letters near a corner. Porcelain sign makers such as Ingram-Richardson ("Ing-Rich"), Burdick, Veribrite, Walker and Company, Baltimore Enamel, Tennessee Enamel and others signed many of their signs, sometimes with a date or a date code.
- Inspect the mounting holes. Many originals have grommets, small metal rings set in the holes, and holes that were made before enameling so the enamel rolls into them. Holes drilled cleanly through the finished enamel, or bright new grommets on a "worn" sign, deserve scrutiny.
- Read the wear. Real age wears where weather, hands and fastenings touched the sign: around holes, along edges and on the side that faced the sun. Even, random scratches all over, uniform rust spots and chips with clean, unrusted edges suggest artificial aging.
What most vintage signs are worth
| Type of sign | Typical examples | Typical value |
|---|---|---|
| Modern reproduction tin or aluminum sign | Gas, beer and soda designs sold as decor | $10-40 |
| "Aged" reproduction porcelain sign | Imported, heavy, artificially distressed | $20-100 |
| Original cardboard store sign | Soda, cigarettes, beer, 1930s to 1960s | $20-300 |
| Original lithographed tin sign, common brand | Embossed or flat, moderate wear | $50-300 |
| Original tin sign, desirable brand and image | Soda, tobacco, farm products, strong graphics | $200-1,500 |
| Original porcelain sign, common subject | Service, utility, "Public Telephone", insurance agency | $100-500 |
| Original porcelain sign, regional brand | Smaller oil, feed or dairy companies | $200-1,500 |
| Painted wooden trade sign | Shop names, folk art | $100-2,000+, depending on age and quality |
The signs that carry real value
| Type of sign | Why collectors want it | Typical value |
|---|---|---|
| Porcelain gas and oil signs from major brands | Texaco, Mobil, Gulf, Sinclair, Shell, Conoco and similar, with strong demand | $500-5,000+ |
| Rare gas and oil brands with pictorial graphics | Small or short-lived companies, animals and figures in the design | $5,000-50,000+ |
| Porcelain soda signs | Coca-Cola, Pepsi, Dr Pepper, Hires, Orange Crush | $300-5,000+ |
| Porcelain tobacco signs | Chewing tobacco and cigarette brands | $200-3,000+ |
| Flange signs | Double-sided, mounted at right angles to a wall | $300-5,000+ |
| Die-cut porcelain signs | Cut to the shape of a shield, bottle or logo | $500-10,000+ |
| Neon and lighted signs, working | Original transformers and tubes | $500-10,000+ |
| Automotive dealer signs | Ford, Chevrolet, Buick, Studebaker and others | $500-10,000+ |
These are broad bands. At the top of the market, rare porcelain gas and oil signs in excellent condition have sold for six figures, but that is a tiny group, and condition can move the value of the same sign by ten times.
Porcelain, tin and cardboard
Porcelain enamel. From the late 1800s to the 1950s, sign companies fused powdered glass onto steel in kilns, one color at a time. The result was tough and weatherproof, ideal for gas stations, stores and roadside use. Porcelain signs survive outdoors for decades, still bright, which is part of why collectors value them so highly. Gas and oil signs are the core of the market, followed by soda, tobacco, automotive and farm brands.
Lithographed tin. Printed metal signs, flat or embossed, were cheaper to make and used widely indoors and outdoors. They scratch, dent and rust more easily, and fewer survive in strong condition. Graphics and brand drive value; a tin sign with strong color and a desirable image can outsell a plain porcelain one.
Cardboard and paper. Store displays, posters and hanging signs were meant to be temporary, so survivors in good condition are uncommon. Value depends on brand, artwork and condition, with sought-after soda and tobacco cardboard reaching hundreds.
Flange and die-cut forms
A flange sign has a bent metal tab along one edge and is printed on both sides, so it can stick out from a wall and be read by people walking in either direction. Collectors grade both sides, and the weaker side often sets the price. A die-cut sign is cut to a shape rather than a plain rectangle or circle, such as a shield or a bottle. Both forms took more work to make and are generally worth more than flat rectangular signs of the same brand.
Dating and grading
Dating. Maker's marks help date porcelain signs. Some include a month and year (for example a small code like "3-48" for March 1948), others only the maker and city. Changes in the brand's logo are the other main dating tool, since companies updated logos at known times. Tin signs may carry the printer's name and sometimes a date line along the bottom edge.
Grading. Sign collectors and auction houses commonly use a scale from 1 to 10, with 10 a perfect sign and 9 excellent with only tiny flaws. Most original signs that were used outdoors grade 6 to 8. The scale is applied by eye and varies between sellers, so read the description and photos rather than trusting a number alone. Chips in the field (the main colored area) or through key words and images hurt more than chips at the edges and mounting holes. Professional restoration, such as filled and repainted chips, is common at the high end and should always be disclosed; collectors check with ultraviolet light.
Reproductions and fantasy signs
The reproduction market is large. Modern reproduction tin signs, many from China, are sold openly as decor and are worth $10-40. The bigger problem is heavy reproduction porcelain made since the 1990s, often in India or elsewhere, artificially aged and sold as original.
Weight. Modern fakes are often lighter than originals of the same size, though some are made on heavy steel.
Shelving. Many fakes are made in fewer layers, so the surface between colors is flat or nearly flat.
Grommets and holes. Look for grommets that are too bright, too uniform or not crimped like period hardware, and for holes drilled after enameling.
"Aged" damage. Fake wear is usually even. Look for chips placed symmetrically, uniform rust staining, scratches that run across the whole sign in the same direction, and chips where the exposed steel looks bright or freshly rusted.
Fantasy signs. Some fakes reproduce no original at all. They put a real brand's logo on a design, shape or size that the company never made, or combine elements from different decades. If a design does not appear in references or past auction results, be cautious.
Maker's marks. Fakers copy maker's marks too, so a mark alone is not proof. It is one piece of evidence among several.
Common mistakes
- Assuming a heavy, rusty sign is original. Artificially aged porcelain fakes are common.
- Cleaning a sign with abrasives, which removes gloss and printed detail.
- Pricing from asking prices or from top auction results for a different, rarer sign.
- Touching up chips with paint before selling. Collectors prefer honest wear.
- Overlooking the second side of a flange sign.
- Ignoring the difference between porcelain and tin, which can mean a tenfold difference in value.
What to photograph
- The full front, straight on, in daylight.
- The back, and both sides of a flange sign.
- The maker's mark along the bottom edge, close up.
- A close-up at an angle across a color boundary, to show shelving.
- The mounting holes and grommets.
- Chips and damage, close enough to see the exposed metal.
- A tape measure across the sign for size.
For other antiques with a strong reproduction trade, see our guides to old cast iron skillets, antique clocks and whether a painting is worth anything.
When to get it looked at in person
For a sign that passes the basic checks and could be original porcelain from a desirable brand, specialist opinion is worth it before selling. Auction houses that specialize in advertising and petroliana see thousands of signs and spot reproductions and restoration quickly; most review photos without charge and charge a seller's commission, often 10 to 25 percent, if they sell it. Established advertising dealers at antique and gas and oil shows can also give a view, though a dealer who offers to buy has a reason to price low. Written appraisals for insurance or estates typically cost $100-300 per item or an hourly fee, and are worth it when a sign could be worth over $1,000. For tin and cardboard signs worth under a few hundred dollars, sold listings for the same sign are usually enough.