| Model Num | Machine S/N Base | Machine S/N First | Machine S/N Last |
|---|---|---|---|
| 988B | 50W | 6965 | UP |
| Misc: | |||
| R1700 II, R1700G | 4LZ | 179 | UP |
| Misc: | |||
| R1700 II, R1700G | 8XZ | 1 | UP |
| Misc: | |||
| R1700 II, R1700G | SBR | 1 | UP |
| Misc: | |||
| R2900, R2900G | BAR | 115 | 161 |
| Misc: | |||
| R2900, R2900G | BAR | 101 | 161 |
| Misc: | |||
| 988B | 50W | 6965 | UP |
| Misc: 3/16 C/S O-Ring used | |||