I have this old 206cc 5HP Briggs & Stratton Fun Power Engine that his made its rounds on a couple of my toys over the years. I'm guessing the code on the side means it was manufactured Oct 11, 1996, but I've only had it since around 2006.
I don't really have any use for it anymore so I have thrown it up on Kijiji. :P
model: 136212002601