WWII CHAMBERLIN AIRCRAFT TRAINING DIVISION SCREWBACK WING WINGS PIN - Measures approx 1 1/8" across. Very nice condition for age with light surface wear, enamel intact, no cracks. Made by Bastian Brothers of Rochester NY. Great piece. See pics. Shipping is 3.99 for any amount of items. No additional shipping will be charged for any amount of items purchased unless the listing states otherwise. (If by chance there is an error and additional shipping is charged, please send a message and it will be corrected.) Please feel free to ask if you have any questions. Thanks for looking and good luck!