Samson Mainspring No. 10442T for Rensie Alarm / Travel Clocks

Samson Mainspring No. 10442T for Rensie Alarm and Travel Clocks the 1930's and beyond, steel. This is the TIME side spring (that's the "T" on the end of the P/N), the one for the ALARM is different than this one. See images 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 an adequate job of representing the item.