Hi Charles, Thank you for contacting Mearto with your appraisal inquiry. The market for automobilia and transportation memorabilia and collectibles is very hot right now. While I have not found another wooden square/diamond stop sign at auction, related examples suggest an appropriate estimate of $1,000-1,500. Based on the photos and information provided, and subject to examination, this is: An American painted wooden diamond STOP sign 1915-1922 The diamond form with applied square molded edge, the word STOP painted in black block letters; holes to the front and back where the sign was affixed to a pole, the reverse with ghost marks of the pole. 20 by 20 inches CONDITION: weathered and with a through-split PROVENANCE: acquired in / near Detroit, Mich. $1,000-1,500* *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, and thank you again for using Mearto.
