Oga is a mark for the german distributor Obergassner. Mine seems to be a version from a Franka's model.
My first photos as a baby, in last 60es were token with this cam by my father. I get this cam from my parents closet when I was 17 and took lot of pics in the last 80es and early 90es.
I loved it because I could to try every speed and diaphragm and I learnt a lot about to shoot photos. These times I did as well somtimes the b/w lab. It was amazing.
After 20 years I get a new time this loved camera to shoot some photos for lomography. I think I get inspired with my old so loved cam. Maybe I did my best with it.
You see there's a problem with the winder lever. It don't pull lot of time the entired frame and I find lot of partial superpositions... but it is as well and attractive, so sometimes I can action twice the shutter in order to get double expossures.
Ok. I feel no nostalgic with this camera that I cannot stop writing. Excuse, me please... ;-)