Colt was based in Hartford in 1925 but at a different facility than the one they’re in now. The Colt Armory has been on the same site in east Hartford since 1855. There is a growing movement to have it become National Historic Park. It was rebuilt and expanded several times over its life and Colt build a new facility in West Hartford in the 1960s that they are in now. They ended operations at the original Armory in 1994 after filing bankruptcy.

http://articles.courant.com/1994-05-01/news/9405010113_1_sam-colt-hartford-plant-ron-whitaker