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Staedtler “Mars” Black Leads No. 1903

lead type lead size available degrees/colors package quantity package composition production date origin	graphite 2 mm 11: ExB, 2B–B, HB, F, H–6H 6 paper box (1920s)–1931 Bavaria
see also	Staedtler "Mars" 1002 drawing leadholder (the comapnion to these leads) J.S. Staedtler Mars-Lumograph Drawing Leads Charles Bruning Co. catalog, 1936, p 216 (pictured, but by 1936 these leads and thier packaging were replaced by the Lumograph brand)

This “Mars” lead predates the introduction of Staedtler’s Mars-Lumograph lead formulation of 1931.


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