Hi Kev!
I didn't see this question! I just did a search of Sears Catalog PDF right now and found one of the pictures in the 1969 catalog. Here's the link... http://www.wishbookweb.com/FB/1969_Sears_Wish_Book/#394 That's about what I expected. I'm not exactly sure of the year of the larger picture, but I have to assume it's also around the late 60's. Hope that helps!
-Mark