4/7/21 - This is an original ZF 4 scope for a WW2 era German rifle (K98, G43, K43). The scope is marked "Gw ZF 4 dow" with "13256" underneath. There's also a triangle next to the "dow" stamp, which is an indication for military use. The scope has some light patina and minor edge wear but is in great overall condition. The optics are clear, but there is some very minor freckling. Overall a great piece.