Bruning Tru-Point No. 3746 Charles Bruning Company, Inc., Mount Prospect, Illinios, USA
	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

	Bruning No. 83-826 (or 3746R) Abrasive Refills for Trupoint Lead Pointer Charles Bruning Company, Inc., Mount Prospect, Illinios, USA
	composition production date origin abrasive coated paper circa 1950s USA   see also Dietzgen SharPoint Abrasive Refills Charles Bruning General Catalog, 1957, p 210