engraved, ‘Attrappe’, ‘Dummy’ & ‘Factice’ on base. Fitted with working Synchro-Compur (sticking slow speeds) but with front & rear glass of finder only, no rangefinder optics and only front elements of lens. This first version (non-removable back) is not usually fitted with a Synchro-Compur shutter but we know of two other first version ‘Dummy’ cameras with Synchro-Compur shutters. All have serial numbers beginning 3360