Waltham Factory Mainspring for 12s No. 2224 Hook End - Steel

Waltham Factory Mainspring for 12s 1894 movements, #2224, steel, new in envelope. These difficult to find mainsprings they have the very unique Hook End that distinguish them from the 2224A, see images for further details. Mainspring has been on the shelf for probably close to 80 years but I inspect all these super old steel mainsprings carefully before I list them, and I guarantee them unconditionally. Images do a pretty good job of representing the item.