| Camera No. | 04/07 | 04/08 | 04/09 |
| Camera Name | Keystone Executive | Magazine Cine-Kodak 16mm | Bolex 233 COMPACT |
| Film Size | 16mm | 16mm | 8mm |
| Film Type | magazine | magazine | magazine not stadard |
| Model | K51 | N/A | 233 |
| Camera Maker | Keystone Camera Co. | Eastman Kodak Co. | Bolex International SA |
| Location | Boston 24 Mass | Rochester | Switzerland |
| Made in | usa | usa | Austria |
| Serial No. | 547452 | N/A | 3173204 |
| Lens | Elgeet-Keystone 1 inch f2.5 | Kodak Anastigmat f1.9 25mm | Bolex VARIO f1.9 9-30mm Zoom |
| Mechanism | spring works | spring works | 2 AA alkiline batt |
| Condition | *** | **** | ** |
| Container | Original leather case | Original leather case | N/A |
| Additonal Parts | N/A | inspector No. 12344 ticket | handle eye piece |
| Lightmeter | N/A | N/A | N/A |
| Features | N/A | [] | mech overhaul 2/12/75 |
| Patent No. | N/A | 1 595 277 et al | N/A |