Pocket Watch Blue Steel Mainsprings-Waltham 0 & 3/0S #2228, 6/0S #2226,Col C #2225-New Old Stock

Blue steel mainspring 0 & 3/0 size #2228. Hole end. For 1900, steel barrel. Some blue loss. Various packages.

Blue steel mainspring 6/0 size #2226 for 1898 hunting and 1942 models. Hole end. Jewel series. With and without packages.

Blue steel mainspring #2252 Colonial C for model C running barrel. Brace/hole end.