I learn a little more each week as I work my way through these vintage pattern. When working through a McCalls Needlework and Crafts Magazine (1962), I came across this American Thread Advertisement.
Leaflets AASQ for cardigans and a skirt, and AM for three block motif skirts.
One just had to cclip out the pattern offer and mail away with 15 cents (apiece). Now, this was still an American Thread promotion in part ... a promotion for their Dawn Knitting Worsted.
Thanks for dropping by,