I have an old frame I plan on restoration for the grandkids. I was told I had a 1974 Kawasaki F7 175 Enduro. I can not find a VIN ANYWHERE...I can only see
MC-020946 and the sticker I've attached to this post

 

You're looking at it without realizing it. It is that number stamped into the frame head tube. Pretty simple. The MC - 020946 is it. It was only in 1981 when vehicle serial numbers went to the current 17 character VINs.