A couple of Russian copies of the Rondinax 35 – the Sputnik 35 – have appeared on eBay in recent months. A US seller has one there now: 151140879039
The seller’s photographs are excellent. It appears to be more like the Essex 35 in terms of preparing the end of the film and the attachment to the band although I cannot see if the attachment is by means of a clip (Rondinax) or buckle (Essex).
I have added the photographs to a Pinterest site (which has photographs gleaned from websites of various daylight-developing tanks showing how the designs changed over time in subtle ways). The Pinterest site is at: