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lead diameter mechanism composition variations production date origin |
2 mm pushbutton incremental advance clutch plastic barrel, metal fittings and mechanism unknown 1980s Italy |
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| special features | lead pointer in removable pushbutton | ||
| see also | C-Thru 3502 |
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| original content, images, layout and design © 2001 to 2010 Dennis B. Smith | more info... | ▲ top | ||
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