| Year | Type | Image | Owner Info | Specs | Notes |
|---|---|---|---|---|---|
| 1921 | chassis: engine: model: 735C body: opera coupe |  image source - Bulb Horn , April 1950 | current owner:<br/>US, CA, 2010<br/><br/>previous owners:<br/>Jasper Wiglesworth<br/>Rufus Limpp<br/>Harry Peterson, 1950 | horsepower: boiler: gear ratio: tires: wheelbase: weight: | Sprague Register 1991 notes:<br/>[not in 1991 Register]<br/>other notes:<br/>Peterson boiler in 1950. |
| 1921 | chassis: 21054 engine: 453-9620 model: 735C body: coupe |  image source - Antique Automobile , Sep-Oct 66 | current owner:<br/>GB, 2011<br/>Haynes Int'l Motor Museum<br/><br/>previous owners:<br/>1984, W. F. Lobb<br/>N. Cole<br/>R. Henton<br/>R. Lamplough<br/>H. Alderman<br/>James Leake, 1974<br/>W. W. Danuser, 1966<br/>T. C. Marshall, 1957<br/>1942, James Melton, 1944 | horsepower: 20 boiler: 23" x 14" gear ratio: 40-60 tires: wheelbase: 130 weight: 3560 | Sprague Register 1991 notes:<br/>[no notes]<br/>other notes:<br/>Melton acquired with 9 (nine) original miles. Danuser acquired with 1200 miles and sold with 1300.<br/>There appear to be at least 2 other opera coupes in the US. |