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| courtesy Laurie Schmidtke collection | |
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purpose lead diameter mechanism composition variations production date origin |
slate board marking ~3 mm, slate twist lock clutch wooden barrel with metal clutch unknown (circa 1900s to 1930s) (USA) |
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| special features | |||
| see also | Eberhard Faber 612 slate board marker |



| original content, images, layout and design © 2001 to 2010 Dennis B. Smith | more info... | ▲ top | ||