Check the listing for details. WW2 German Luftwaffe Nitsche u. Gunther - SPLINTER-PROOF GOGGLES - KC RECIPIENT. Listed at 1999.99 USD. In the early 1930's the German firm, "Nitsche & Günther" designed splinter goggles that were based on a pattern that was originally developed by the British firm "Triplex". This set of Nitsche und Günther Flight goggles set is in VERY NICE used condition!