Excelsior #2933 Mainspring for Alarm / Travel Clocks - 33 x 3/0 x 22½

Excelsior No. 2933 Mainspring for Alarm and Travel Clocks the 1930's and beyond, Tongue end, steel.  Measures a Dennison 33 x 3/0 x 22½ - 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 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.