| Camera No. | 23/07 | 23/08 | 23/09 |
| Camera Name | Keystone Olympic Turret 8 | Keystone Riviera | Keystone Mayfair |
| Film Size | 8mm | 8mm | 16mm |
| Film Type | double | magazine | magazine |
| Model | K-35 | K-45 | K-50 |
| Camera Maker | Keystone | Keystone | Keystone |
| Location | Boston 24 Mass | Boston 24 Mass. | Boston Mass |
| Made in | usa | usa | usa |
| Serial No. | 766346 | 881901 | K- 05227 |
| Lens | turret Keystone -Elgeet 1/2" f2.5 | turret Wollensak 13mm f/2.5 CINE RAPTAR / Elgeet 6.5mm f:2.5 W A / Elgeet 1 1/2" f: 3.5 CINE-TEL | Wollensak-Keystone 1 inch f/2.5 CINE RAPTAR |
| Mechanism | spring works | spring works | spring works |
| Condition | *** | **** | ** |
| Container | orig leath case | N/A | orig leath case |
| Additonal Parts | Kodak filter w case | [] | travel decals on case |
| Lightmeter | N/A | N/A | N/A |
| Features | N/A | [] | N/A |
| Patent No. | N/A | licenseed uder US Pat 2 153 220 | N/A |