Factory Chain, Vintage, DB&Co.

This is a long chain. I think it's a ladies' watch chain. I don't have much info about it. I think it's from the 1930s. The approximate length is 24" (60.96 cm.) It does not open. There's no clasp. It slips over the head. The loop is a clasp--am item call be clipped into it. That's why I think it's a watch factory chain.