26th Apr, 2019 12:00
Fine Photographica & Instruments of Science & Medicine
Three Full Size Plaster Engineering Didactic Models
19th century, French, detailing a large square screw thread, a large 'unified' screw thread and one other engineering model, tallest 30cm
19th century, French, detailing a large square screw thread, a large 'unified' screw thread and one other engineering model, tallest 30cm
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Auction: Fine Photographica & Instruments of Science & Medicine, 26th Apr, 2019
