Z.F.41 Emil Busch A-G in Rathenow (cxn)

Early type 1 Z.F.41 telescopic sight made by Emil Busch A-G in Rathenow (code cxn). The “K.F.” marking (Kältefest) indicates that the scope was lubricated with cold-resistant grease “Invarol”. Early ZF41 sights used flat rollers mounts.