A WKC Envelope. It is constructed out of a tan paper glued to cardstock. The obverse features, in black printed ink; the WKC knights head maker mark, “Herr/Firma”, “Qualitätsmarke”, “WKC-Waffenfabrik Gesellschaft m. beschr. Haftung Solingen-Wald”. The reverse shows an aluminum holder. Some of the edges are torn. No soilage. One corner is hanging on by a thread. It ...
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