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Mason & Hamlin model O Upright #737
| Make: | Mason & Hamlin |
| Model: | Style 5 |
| Type: | Upright |
| Serial: | 737 |
| Year: | 1883 |
| Size: | 54" |
This is the earliest known Screwstingers and shows many differences from the later examples. For example, there is no pinblock as in this one
There are no posts in the back.
This is the exact model portrayed in the ad.