Field phones
From RCSigs.ca
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Field phones are a class of telephones used by an Army on operations. While they may be used in a more traditional office environment that is not their primary purpose.
Early Field Phones
| Fullerphone Office Mark I | |
| Fullerphone Mk III | |
| Telephone Set D Mk III | |
| Telephone No. 110 (Mark 234) | |
| Lister Set (also known as a Listerphone) |
Second World War Era Field Phones
| Telephone Set D Mk V | |
| Telephone D Type Training Pattern | |
| Telephone Set F Mk I | |
| Telephone Sets F High Power | |
| Fullerphone Mk IV (Canadian) |
