On Friday, April 22, 2005, at 09:34 PM, David Seifert wrote: > Ardeshir, > > Just for you, I look this up again. According to Prochnow in Rollei > Report 2 page 409 there were 250 units of this type built in June > 1961. He notes that these were "Direktverkauf, nicht gelistet", direct > sale, no price listed. I interpret that to mean that these were a > custom order batch. The customer is not mentioned. They used 120 film > and produced either 12 6x6 images per roll or 24 24x36 images per roll > using the special mask kit. Thus, they had a 12/24 frame counter. > > For the record, the standard model of that run (56,000 units) came > with a 12/16 frame counter equipped to do 12 or 16 exposures per 120 > roll. The mask kit produced 16 4.5x5 images. > > Thus spake Prochnow! > > David Thank you, David. Kind of you. The custom order explains it. I had no idea that they could do 24 exposures on a 120 roll. The 16-exposure mask, however, I knew about. Thanks again for taking the trouble. Cheers, A.