Made in Poland by WZFO, this camera had various versions with different finders and synchro contact .It wa made in the '60 years and was a direct descendant of the Pouva Start and more similar to the Yunkor from KMZ.
"Druh" means friend it was replaced at the end of 60s begining of 70 by the "Ami" a very similar camera with a novel style.
Yunkor cameras could be seen at:
http://www.photohistory.ru/1207248176102409.html