This vintage 3inch round Pratt & Whitney aircraft celluloid dial is a must-have for any aviation enthusiast. It was made in the United States and was designed to set pistons on a WWII Pratt/Whitney Double Wasp engine. The dial is in great working condition and is a rare find for collectors of military aircraft items.

In addition to its historical significance, this dial is a unique piece of engineering that showcases the precision and craftsmanship of American aviation during WWII. Whether for display or practical use, this Twin Wasp Valve Adjusting Guide- celluloid dial is an excellent addition to any aviation collection.

Excellent condition for its obvious age. No actual date noted on it but used during WWII. Inner circle moves freely.

Shipping via US postal service included in purchase price.