| Name | GRAY 18 19 22 24 27 |
| Date | 1910-20 |
| Manufacturer | Gray Telephone Pay Station Company |
Development of the GRAY 18 Payphone
| GRAY 18 early three slot mounted to a timber wall unit |
GRAY 18 Payphone
GRAY 18 19 22 24 27- various early three slots
Payphone Story – Global History of Payphones and Phone Booths
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