| CCSTID | STK634963S |
| Brand | Keystone |
| Sub | |
| Model | 61 Second Everflash 850 |
| AKA | |
| Factory Ref. | |
| Introduced | 1975 |
| Estimated price US$ | 30 |
| Other name | Keystone Camera Company |
| Type – see definitions | Instant |
| Format | |
| Country | USA |
| Transactions sampled | 3 |
| Last upload | 05-Aug-26 |
| Art | FALSE |
The estimated value presented above is an average of 3 transactions recorded over the past years. This should be taken as guidance only, as a value of a specific camera can be over or under the value suggested here and further depends on the seller and buyer’s eagerness. 
Keystone 61 Second Everflash 850 Instant 1975 USA
