| Model/Catalog Number: | Description: |
|---|
| 1906, 8-inch Number 4 |
The O'brien Twins First lathe. |
| 1910, 9-inch Model 22 |
Standard Change Gear, w/o longitudinal or power crossfeed, w/o Twin Reverse Shifter. Replaced by model 24 in 1911. |
| 1911-14, 9-inch Sears Expert, Model 24, SN-2901 |
Standard Change Gear, w/o longitudinal or power crossfeed, headstock with belt fingers, w/o Twin Reverse Shifter. |
| 1910-14, 10-inch /also Sears Expert, Model 26 |
Standard Change Gear, w/o longitudinal or power crossfeed, w/o Twin Gear Reverse Shifter. |
| 1912, 11-inch Model 27, SN-1359 |
Standard Change Gear, first 11-inch with longitudinal and power cross feeds, with Twin Gear Reverse Shifter. |
| 1910-1914, 11-inch Model 28 |
Standard Change Gear, w/o longitudinal or power crossfeed, with Twin Gear Reverse Shifter. |
| 1912-1914, 11-inch Model 29 |
Standard Change Gear, with longitudinal and power cross feeds, with Twin Gear Reverse Shifter. |
| 1910-1914, /also Sears Expert, 12-inch Model 30 |
Standard Change Gear, w/o longitudinal or power crossfeed, with Twin Gear Reverse Shifter. |
| 1907-14, /also Sears Expert, 13-inch Model 32 |
Standard Change Gear, original 13-inch lathe built 1907-1914, w/o longitudinal or power cross feeds, with Twin Gear Reverse Shifter. |
| 1910-1925, /also Sears Expert, 13-inch Model 34 |
Standard Change Gear, first lathe with longitudinal, power cross feeds with Twin Gear Reverse Shifter. |
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