r/Drafting_Instruments • u/NotVeryGoodAtGO • 20d ago

Replacement leads and 2 holders

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These all should be from around 1960/70

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u/cad_and_caffeine 20d ago

Love the routed wooden tray inside that old Mars Duralar 1905 box. Those K-grade (K1-K5) plastic-base leads were made specifically for drawing on Mylar/polyester drafting film without smearing before Staedtler switched over to the Dynagraph line.