| Name | GRAY 150 Central Battery exchange Coin Collector payphone |
| Date | 1921-33 |
| Manufacturer | Gray/Western Electric Payphone. |
Development of the GRAY 150 Central Battery exchange Coin Colector payphone
| There was still a considerable need for non-dial payphones at this stage. 1930’s Gray 150LJ Pay Station Gray 150LJ Pay Station featuring a Salad Fork Switch Hook and a Type 41 Handset with Chrome Rings. |
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