 |
| A Wolff-American Duplex three wheel side-by-side sociable bicycle; image credit on full record. |
 |
| A Wolff-American Duplex three wheel side-by-side bicycle, side view; image credit on full record. |
 |
| Front view of the Wolff-American Duplex three wheel bicycle; image credit on full record. |
 |
| A Wolff-American Duplex three wheel side-by-side sociable bicycle; image credit on full record. |
 |
| Head badge on the Wolff-American Duplex three wheel bicycle; image credit on full record. |
 |
| Lamp on the Wolff-American Duplex three wheel bicycle; image credit on full record. |
 |
| A Wolff-American Duplex three wheel bicycle, detail; image credit on full record. |
 |
| A Wolff-American Duplex three wheel bicycle, detail; image credit on full record. |
