Tool bayonet for K98, extremely rare and expensive.
Real SG42: Bakelite handle, metal parts blued, bright blade, bayonet markings cof = Carl Eickhorn in Solingen, WaA 519, tool markings ltk = Robert Klaas in Solingen
Excellent repro: no markings, bakelite handle, blued metal parts, bright blade.
Excellent repro: markings, bakelite handle, blued metal parts, blued blade.
Decent repro from 2012, maybe late 2011. No markings, plastic handle, bright metal parts.