US WWII Air Transport Command DI's, Sterling, Pinback, LeVelle Mfg.

Original era manufacture. US WWII Air Ferrying Command distinctive insignia. Pinback attachments, sterling marked, made by LeVelle Company of Philadelphia. One of the attaching pins appears to be a period replacement. These match on the front side, but the reverse shows a different style of clasp. Each measures 30 mm in width.