I made several of the designs for my daughter and her friends when they were little: Humpty Dumpty, Train, Ducks and Clowns among them. It was fun, and the kids loved them.
One of the things that I really liked about these particular patterns was the fact that the knitting graph was life-size. You could lay your knitting on top of it to be sure that your sweater was the same size as the one in the pattern. It was also nice to have the intarsia graph so large. Nowadays, I'd take it to a copy place and have it enlarged, but I don't remember that being an option "way back when".
I treasure these old patterns and wouldn't part with them for the world. I won't make copies for anyone, but I have seen some of them on eBay. I have an address for the company, if you're interested, but I have no idea if it's a good one as it's on the back of the catalog (above), which is probably 40 years old: Knit-O-Graf Pattern Co., 958 Redwood Drive, Apple Valley, MN 55124.