Dawn Bulky Yarn made it's appearance in yarn shops -- and newspaper advertisements -- in 1958, with an initial price of $0.79 per 2-oz skein.
American Thread Co., "Dawn" Bulky Yarn, Art W33; 2 fold, 100% Virgin Wool. This is a super bulky yarn, worked on big needles - great for sweaters, hats and bags.
American Thread Star Book 176 - Sweaters Crocheted and Knitted from Him and Her.
As well as American Thread Star Book 117 - New Hats, Bags, Bulkies
So, there was not a lot learned about this yarn. We know that it was in the 'super bulky' category that was available in the market between 1958 and 1965. If you are looking for a substitute, you will need to rely on the stitch gauge for your desired pattern. AND, there are quite a number of patterns available that called from this Bulky Yarn. I have a variety in the shop as well, should you care to browse.
Thanks for dropping by.