Excelsior #2936 Mainspring for Looping Clock

Excelsior No. 2936 Mainspring for Looping and Travel Clocks the 1930's and beyond. Could also very well fit in other travel & Alarm clocks. Note while the mainspring is new the envelope has been handled quite a bit over the years and is likely torn or otherwise distressed. See image for precise mainspring characteristics. 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.