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PAY PHONE DISK TEST COINS, 1970's

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PAY PHONE DISK TEST COINS, 1970's

Used for checking operation of telephone coin boxes.
Sizes are early Metric type.

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A0060



2007 The Museum of Technology, The Great War and WWII
Company registered in England No. 7452160, Registered Charity No. 1140352, Accredited Museum No. 2221