year/model

I just picked this up tonight first one I have ever seen in person. I picked it up for $200 motor not running but it is all there and turns over with compression. Has an Horn and head lamp with high and low and a tail light/brake light. It still has the 2 speed shifter needs new cable. Gas...

This unit was purchased with wheels (only rear wheel was original) for $75. Finding parts means I need to know the year at least. I saw a photo of a C-350 and It looks very similar. Wad-ya-think? Including photo of rear brake plate as there seems to be a split in model years depending on...