Ok, I spoke with a mr. Pierfrancesco which I assume is one of the owners mentioned on the site. He told me that the two small levers you see on top next to the viewfinder are a) a cutter (film cutter? weird), and b) the back release lever which is marked A/C, "A" for "Aperto" (Opened) and "C" for "Chiuso" (Closed).
He says you just need to set the lever to "A", then slide the back which comes off as a single piece with the base.
While I had him on the phone, I asked him about reliability and repairs. He told me that the main problems with these cameras are the small springs that control the curtains: they were made from scrap metal (or so I understood) at least in the first models, and tend to rust. Replacements have to made by hand as the exact thickness of the wire (or spring size, I could not follow him all that well) used is no longer manufactured and/or very hard to find.
They repair all their cameras, but he said that in some cases (extreme wear/replacement parts, etc.) the cameras will shoot and work but fast speeds will not be accurate anymore.
Hope it helps.
Last edited by ludoo : 08-03-2009 at 00:33.