Excelsior #2830 Mainspring for Alarm / Travel Clocks - 13 x 4 x 16

Excelsior No. 2830 Mainspring for Alarm and Travel Clocks the 1930's and beyond, regular tongue end, steel, new in envelope. Could also fit in other types of clocks (and perhaps even some large pocket watches) as well. I likely have several of these so the one you get may differ slightly from the images. Measures a Dennison 13 x 4 x 16 - See images for further information. I specialize in hard to find parts so I usually have whatever you might need and all parts are unconditionally guaranteed. Images do a pretty good job of representing the item.