Hirst Contact Lens Limited, Manufacturer; Department of Scientific & Industrial Research, Manufacturer;
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Department of Scientific & Industrial Research, Manufacturer
Horizontal oblong object with an eyepiece at one end. This points to a black piece fitted with a metal wire mount, presumably where the contact lens was placed. The vertometer is supported in the centre by a black circular base. There are two horizontal rods of metal that span the object’s length – one is cylindrical and the other is rectangular. The outward face of the rectangular rod has a number scale. From the left, the numbers start at 10 and descend in increments of 1 to 0 in the centre. The numbers then ascend in increments of 1 up to 20. There are two black Bakelite rectangular pieces that can slide along the length of the item. These pieces hold metal cylinders with lenses. The rear cylinder has a power cord attached at the back, this is the light source for the instrument. The cord connects to a small wooden box with a round black plastic switch on one end. There is a piece of card attached to the lid, with writing handwritten in black. It reads “Vertometer / 1946 / built by D.S.I.R.” Inside the box is a battery terminal which operates the switch.
1947. Vertometer, Haptic, 2018.1.10. The Museum of Transport and Technology (MOTAT).
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