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Description
| Manufacturer: | Verville-Sperry | |
| Base model: | M-1 | |
| Designation: | M-1 | |
| Version: | A | |
| Nickname: | Messenger | |
| Designation System: | U.S. Air Force | |
| Designation Period: | 1919-1924 | |
| Basic role: | Messenger | |
Specifications
| Not Yet Available |
Known serial numbers
