| Mountings, Dial No. 3
75mm External diameter of base 55mm Internal diameter |
 |
| Mountings, Dial No. 7 72mm External
diameter of base 55mm Internal diameter |
 |
| Mountings, Dial No. 3
75mm External diameter of base 55mm Internal diameter |
|
| Mountings, Dial No. 7 72mm External
diameter of base 55mm Internal diameter |
|
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