This United States Postal Service sign is 1 of 9 signs that were made for the United States Postal Service experimental signs. My uncle handed it down to me after retirement at the Postal Service. He was told that 9 signs like this were made and only a few survived and the rest were melted.


36 inches in height 34 inches in width and 2 inches thick.

Acquired From:


Do you have a similar item and want to know how much it's worth?

Find out with a quick and affordable online appraisal from a Mearto specialist.

Mearto's online appraisal:


Mearto specialist

June 3, 2024
Fair Market Value:

Hi Chris, Thank you for contacting Mearto with your appraisal inquiry. Enameled porcelain signs were far more common, for the USPS and other businesses; aluminum was a revolutionary material for signage and is highly collectible. With few existing examples, most auction houses that specialize in signs - particularly second-half 20th Century signs, would probably value this at $3,000-5,000, which is both low enough to generate interest and high enough to acknowledge its rarity and potential value. If I saw this at auction, I would not be surprised if it sold for more , possibly even much more, but putting too high an estimate is certain to dissuade or deter potential buyers. Based on the photos and information provided, and subject to examination, this is: A rare vintage USPS aluminum prototype sign circa 1960s-70s The rectangular sign with rounded corners with embossed writing "UNITED STATES POSTAL SERVICE / US MAIL" and centering an eagle in profile. 36 by 34 by 2 inches CONDITION: This sign appears to be in excellent condition PROVENANCE: Inherited from a $3,000-5,000* *represents a fair-market value for auction purposes; retail or asking price may vary. Please let us know if you have additional items to appraise, or questions/concerns, and thank you again for using Mearto. ~ Delia