For sale, the vintage WW2 era US Army Medical Corps collar insignia with Phinney clutches that is shown in the pictures. The insignia has no markings. One of the clutches is marked "Pat. No. 1454857". This pin is in very good condition and the clutches are working properly. Buyer pays actual shipping cost for a 2 oz USPS First Class Package.  Please e-mail if you have any questions or would like to see more pictures. Thanks for looking.