Comsco Mainspring #1005 for 16s Waltham Factory No. 2208 - Steel

Comsco Mainspring #1005 for 16s Waltham Movements, Factory No. 2208, T end, steel, new in envelope. 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 is hard to find watch parts and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.