Paulson repackaged Elgin Durapower 10s Mainspring No. 6001 - Alloy

H. Paulson & Co repackaged Elgin Genuine Factory Durapower Mainspring for 10s Movements, Factory No. 6001, alloy, new in envelope. See images for further details. Sometimes it's fun to editorialize a bit and wonder why Paulson needed to take the mainspring out of an Elgin envelope and put it in theirs? I specialize is hard to find watch parts and all watch parts are unconditionally guaranteed. Images do an adequate job of representing the item.