A.H. Harris Mainspring for Elgin 3/0s Factory No. 2097 - Steel

A. H. Harris Mainspring for Elgin 3/0s movements, Factory No. 2097, steel, new in envelope. See images for further details. 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 a satisfactory job of representing the item.