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Bruning Tru-Point No. 3746

lead size mechanism composition variations production date origin		2 mm (or smaller) desktop turret with abrasive cylindrical insert cast iron base with die-cast turret none circa 1950s USA
see also		Tru-Point Lead Pointer Charles Bruning General Catalog, 1957, p 210


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Bruning No. 83-826 (or 3746R) Abrasive Refills for Trupoint Lead Pointer

composition production date origin		abrasive coated paper circa 1950s USA
see also		Dietzgen SharPoint Abrasive Refills Charles Bruning General Catalog, 1957, p 210