Excelsior #2942 Mainspring for Alarm / Travel / Car Clocks - 34 x 0 x 48

Excelsior No. 2942 Mainspring for Alarm, Travel & Car Clocks the 1930's and beyond, regular tongue end, steel, new in envelope. Could also fit in other types of clocks, likely of the 8-day variety, as well. I likely have several of these so the one you get may differ slightly from the images. Measures a Dennison 34 x 0 x 48 (4.30 x .25mm) - 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.