Comsco Mainspring #10760 for Elgin 6s Factory No. 824 - Steel

Comsco Mainspring #10760 for Elgin 6s Movements, Factory No. 824, steel, new in frail or torn envelope. Distributed by Burton M. Reid and Sons. See images for further details and precise mainspring specifications. I likely have several of these so the one you get may differ slightly from the images. I specialize in hard to find watch parts and all watch parts are unconditionally guaranteed. Images do an adequate job of representing the item.