In clearing out my mother's sewing box I found a lot of thread spools, including these three that are labeled "Coats and Clark's Button and Carpet Thread":
Here's a closeup of one of the spools:
Sewing is not one of the crafts I do but I thought I could use this thread for bead crafts because it's thick and looks strong, and the neutral colors would be good choices. I'd like to have a better idea of how it will wear, though, so I have two questions:
1) Is anyone familiar with this thread, and if so, do you know the fiber content? I have some upholstery thread that I bought a few years ago that worked well for bead crochet; it was nylon. But this thread is much older - probably from the 1950s or '60s (if it helps, I can say that all the spools are wood; I just don't know when they switched to plastic spools). It is a bit shiny and when I look at it closely I can see the twist in it.
2) Would this still be good to use? I'm wondering if thread deteriorates over time. I ask not just for my own crafts but because I found a lot of other thread too, including Dual Duty and a bunch of spools of silk, and it would help me decide what to do with it.
I was going to contact Coats & Clark and ask them about it but their contact form asks for a lot of personal information and the page isn't secure, so I'm reluctant to do that. I could call them but I thought I'd try here first because I can include pictures. If you know anything about this thread I would really appreciate any information you could provide.