I have one of these and it has an octagon barrel, brass buttplate and forend cap and a brass medalion on the side of the reciever and one on the stock. I can't find much on these rifles, does anyone know how much they sell for. It looks to have been fired very little and doesnt have a mark on it that i can see.
I think that this rifle was the very limited run they did for Walmart many years ago. They were very expensive for a 22 rimfire. The medalion is actually gold plated if I remember. I'll have to dig mine out from the back of the safe (mine still has the hang tags on it) to get another look at it.
note: others have dated the rifle to early 1970's, but I know mine was built in the early 1980's. The wood on mine is much darker and looks nothing like the Marlin factory wood. I'll get a picture of it.