| Manufacturer | Sans & Streiffe |
| Model | No. 311 |
| Serial No. | |
| Scale length | 25 cm |
| Overall length | 32.0 cm |
| Width | 4.1 cm |
| Body/Slide materials | Plastic on Bamboo |
| Post materials | Metal |
| Cursor materials | Nylon / Plastic |
| Scales |
L LL1 DF [CF CIF CI C] D LL3 LL2 LL0 LL00 A [B K CI C] D S ST T (DMS trig.) |
| Accessories | Original box, instrunctions, brown leather case, and desiccant pack. |
| Notes | This is a rebranded Ricoh/Relay 150. Compare with Jason No. 802 |
| Tag No. | SS-311 |