Bidspirit auction | A Collection of Vintage and

A Collection of Vintage and Modern Engineering and Scientific Measuring Instruments - An assortment of 20th-century technical measuring and calculating instruments. The collection includes several slide rules of varying designs, featuring models by Aristo in a cardboard box, Thornton in a black protective sleeve, and a Scholar model in a branded box. Further slide rules are present in green and grey protective cases, with scales clearly legible on plastic or celluloid-faced wood bodies. The group contains two modern digital vernier calipers, each housed in a fitted black plastic case, with one marked Distag QCS on the stainless steel scale. Also included is a selection of precision gauges, comprising two dial indicators in velvet-lined cases, one with a French instruction sheet titled Mode d'Emploi, and a hand-held mechanical tachometer by Pivo, contained in its original cardboard box with several interchangeable drive tips. The items are constructed from materials including stainless steel, plastic, wood, and cardboard.