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Koh-I-Lar

L. & C. Hardtmuth “Koh-I-Lar” 1500-M

L. & C. Hardtmuth, Inc., Bloomsbury, New Jersey, USA

lproduction date
origin
available degrees
ead composition
 1961 to (1990s)
USA
6: 3B, B, HB, 2H, 4H, 6H
graphite with polymer binder 		 
see also Koh-I-Lar 2200 M plastic drawing lead
Koh-I-Noor Rapidograph, Inc. catalog, 1980, p 34
Koh-I-Noor Rapidograph magazine ad, circa 1984
In 1961 Koh-I-Noor introduced their Koh-I-Lar line of pencils and lead for drawing on Mylar plastic film.
 
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