Waltham Factory Mainspring for 16s No. 2227 - Steel

Waltham Mainspring for 16s Model 1899 movements, Factory No. 2227, steel, new in dirty or frail envelope. See images for further details. These were available in several different strengths and those that I can supply are shown in the drop-down list. Mainspring has been probably been on the shelf for nearly 50 years but I inspect all these old steel mainsprings carefully before I list them, and I guarantee them unconditionally. Images do a pretty good job of representing the item.