Bridger & Kay Cancellation Gauge
Purchase
SKU: 64221
Description
The Bridger & Kay Cancellation Gauge is printed on clear plastic. Full instructions are included. This gauge was designed with two purposes in mind:
- To measure the diameter of a full or part of a circular cancellation.
- To give an easy form of reference for the letters of figures in a cancellation to enable material to be compared by correspondence.
The gauge consists of two sets each of five concentric circles. These circles are each of a radius so as to allow an exact number of m/m in each circumference and an exact number of m/m in each of the 16 equal sections of the circumference. The thick cross lines of the gauge are each graduated in m/m and half m/m measuring from the centre. Oval cancellations may also be measured but care has to be taken to find the centre.


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