POLICE STREET TELEPHONE UNIT
Jack in unit for metropolitan police kiosk types with inward signalling facilities.
Used with mounting base N20209.
Introduced around 1933.
| Code No. | Type | G.P.O. No. |
| N20350 | Terminal street point | Unit Tele PA No. 7T |
| N20350A | Terminal street point | Unit Tele PA No. 7T mk4 |
| N20351 | A point | Unit Tele PA No. 7A |
| N20351A | A point | Unit Tele PA No. 7A mk4 |
| N20352 | B point | Unit Tele PA No. 7B |
| N20352A | B point | Unit Tele PA No. 7B mk4 |
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