Excelsior #2936 Mainspring for Looping 40/45 Travel / Alarm Clock

Excelsior No. 2936 Mainspring for Looping 40/45 Travel & Alarm Clocks the 1930's and beyond, steel, new in possibly torn or frail envelope. Interestingly this spring is used on both the TIME and ALARM sides. Could also very well fit in other travel & Alarm clocks. See image for precise mainspring characteristics. I likely have several of these so the one you get may differ 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 suitable job of representing the item.