Modrian Rug Kit

I haven't made a rug before, but this fun kit based on art by Modrian has inspired me to try it. I found this vintage kit, in it's unopened/unused package, for 95 cents at a thrift store. Isn't it lovely? Note color chart: Hemlock, and Avocado green. Ah, that places it in the seventies, eh? Hemlock?