Tolvizier van de Sperry Gyroscope Co, Brooklyn, circa 1943. Afkomstig van de na de Tweede Wereldoorlog geleverde Amerikaanse fregatten.
Opschriften
signatuur vervaardiger: Made by Sperry Gyroscope Co Inc. Brooklyn N.Y. opschrift: U.S. Navy Bu of Ord. Gun Sight Sperry M.I.T. [en] Mark 15 Mod. 2 for 3"-50 gun Inspector No 2039. Made by Sperry Gyroscope Co Inc. Brooklyn N.Y. [en] Gun Sight MK 15 Mod.2 I.V. 2614 F.S. Ord. Pamphet No 824 dated may 1943 Dr 0 417402- -2 [en] Grad. SK.