A beautiful collection of antique calculating instruments
October 26, 2018 3:09 PM Subscribe
From the mid 16th century until the 1970s all architectural and engineering drawing was done manually by using pencil and pen with the aid of drawing and other technical instruments. Today most technical drawing is done with CAD and the great instrument manufacturers have all but disappeared and the tools of yesteryear have now become museum exhibits and prized collectors' items.
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