| Name | GRAY 23D MULTI-COIN POSTPAY |
| Date | 1910-30 |
| Manufacturer | Gray Telephone Pay Station Company |
Development of the GRAY 23D MULTI-COIN POSTPAY
| Now the 23D is interesting as it is really almost a standard 3 slot |
GRAY 23D MULTI-COIN POSTPAY
Now the 23D is interesting as it is really almost a standard 3 slot
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