This is a FED 2 Preseries-Crossover or as some people call it Preseries-2.. It is a hybrid between Preseries and a production model. It still possesed a little lever around the shutter release button instead of a "mushroom" like on production model, but the riveted square front rangefinder window had been replaced by a regular round one.

See classificator by Aidas P at http://www.sovietcams.com/index.php?-1620130885

Known Serial Numbers:

#005225 sold on ebay
#006468 for sale on the net recently
#007739 sold on ebay
#007819 Jacques coll.
#008073 for sale on eBay recently
#008195 uwitte collection
#009075 for sale on eBay recently
#010945 Vlad collection
#012247 SovietCams
#016803 Michel coll.
#017642 geoffox23
#023335 Kievuser collection