Just kidding. But this was just too good not to share. It's from "Woman's Day Knitting Book" (actually a magazine) dated Spring 1973. My mom totally could have knit this while pregnant with me. I wonder why she didn't?
It calls for Red Heart yarn, so this would be easy to knit even today without the pesky substitutions required for most vintage patterns. The description reads: "Glorious colors of the rainbow reflect the way you feel in fun to knit, great to wear bib-top shorts." Yes, when I think fun, I think knitted bib-top shorts.
Edited to add: Thanks to Trinity for alerting me to the Overalls of Shame on Ravelry. The project is here, but if you aren't on Ravelry you can see photos at the blog post here. Do check it out!
