(photo from collection of Ravelry member)
Dawn Baby Yarn - 100% Wool, 3 ply, Art W45 in white, pastels and multi-color skeins
This American Thread Yarn was introduced to the market in late 1946 with very little fanfare .. just a simple yarn shop advertisement in Lubbock, TX only. This would imply that American Thread did not finance the introduction with a 'typical' major markets promotion.
In 1977, the yarn disappeared from shops with as little fanfare as it was introduced in 1946. A random guess, on my part, would be the growing of popularity of the Dawn Wintuk Baby Yarn -- which was a nylon blend, led the sales for American Thread in baby yarn.
And, that's all I know. If you have a design that you'd like to try, substitute a lightweight baby yarn that meets the gauge of of your pattern ... be it 100% wool, or one of the marvelous blends.
If you know more .... Please share.
Thanks for dropping by,