See my Etsy shop at https://www.etsy.com/shop/VintageKnitPatterns?ref=si_shop
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The other great source for trying to find information about vintage yarns is Trove. Trove is the digitised pictorial collection of the National Library of Australia and several other State Library collections. Most of the information about knitting yarns comes from advertisements from old newspapers, such as the following:
I have just discovered that all the patterns published in the newspapers are also indexed, so there's a another few hundred hours of my life gone.
So I will continue to update the Australian yarns as I find the information and the time, but I rely on overseas readers to share their knowledge of what current yarns could do as equivalents to vintage yarns. Let's hear from readers in the US, UK, Canada and New Zealand, and the rest of the world too, please.