Hello everyone,
Over the years I have picked up a few Zorki 4Ks with unusual speed dials(engraved), and now I have 3 types with engraved speed dials.
Here is the most uncommon one with speeds of 1/2,1/5,1/10.... and the our ring for flash synchro with only X.M letters.
The other two has later shutter speeds of 1/2,1/4,1/8....but only one with a flash synchro ring with numbers of 0,10,15...25, the other only has letter X.M. These cameras were made from 1974-76.
I have seen a few more, but these are quite rare compared to regular 4Ks.
Cheers,
Zhang
http://www.ussrphoto.com/UserContent/1512010_IMG_9300.JPG
http://www.ussrphoto.com/UserContent/1512010_IMG_9300l.jpg