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This is a pretty fabulous collection of fascinating, expensive, and obviously very finely crafted tools for architects, engineers, "draughtsmen," and allied professionals.
Other editions - View all
12 inch divided 24 inch 31 inch adjustable altitude scale angle Beam Compasses Black Walnut Blade Bow Pencil Box with Leads Camel Hair Chain Scale Clamp Clinometer contg Copyright Divider and Bows Drawing Paper Drawing Pen edge Engineer's Transit Engineers ESSER CO fixed Needle Point folding foot german silver Box Hairspring Divider half degrees Hard Rubber inch diam inch long inch wide instrument stamped KEUFFEL Ivory Handle Ivory Scales jacob staff Joint and Pin KEUFFEL & ESSER Lengthening Bar lined Lock and Tray metal dial Morocco nickel plated object glass Pair Compasses Paragon Scales Parallel Rules Patent Pearwood Pen and Pencil Pen with Joint Pencil and Needle Pencil Point pivot-joint Plain Divider Point and Lengthening polished mahogany box Proportional Divider Protractor Railroad Curves rolls of 20 Rosewood Rubber Triangle Set Steelspring Divider sheet Square stamped with trade-mark Superior Swiss Instruments Tracing Paper tripod vernier reading