PO ENGINEERING INSTRUCTIONS
MISCELLANEOUS
TIME
B 1321
Issue 5, Oct 1970
CLASS A (PULSE) CLOCKS
This is one of the standard half minute pulse clocks at present used by the
PO. The movements are described in B 1311.
CLOCK No. 6
General purpose wall mounted clock. Now superseded by Clocks No.
78A.
Drawing P/T 26.
| No. |
Overall dia. |
Dia. of dial |
Depth (back to front) |
| 6 |
22 in |
18 in |
3 in |
|