Excelsior #2900 Mainspring for Alarm / Travel Clocks - 29 x 3/0 x 26

Excelsior No. 2900 Mainspring for Alarm and Travel Clocks the 1930's and beyond, steel.  Note while the mainspring is new the envelope has been handled quite a bit over the years. Measures a Dennison 29 x 3/0 x 26 - see images for further information. I likely have several of these so the one you get may differ slightly from the images. 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.