The OB3 is Oscar Schmidt's open-back banjo — the classic configuration for clawhammer, old-time, and folk playing, with a Remo drum head for clean attack and traditional voicing.
- Configuration: Open-back banjo
- Head: Remo drum head
- Construction: Mahogany shell
- Designed for: Clawhammer, frailing, old-time, folk playing
- Finish: Satin