Comsco Mainspring #1008 for Waltham 16s Factory No. 2227 - Steel

Comsco Mainspring #1008 for Waltham 16s Model 1899 - 1908 Movements, Factory No. 2227, steel, new in frail envelope. Distributed by Burton M. Reid and Sons. See images for precise mainspring specifications and further details. I likely have several of these so the one you get may differ sliughtly 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.