Seecamp:"In the early 1970s through the early 80s they converted nearly 2000 1911 pistols to double action. These are very much sought by collectors today."

Rare Seecamp DA conversion of Colt Combat Commander - 1911Forum

ODI Viking-the production version of the Seecamp conversion.

Colt Double Eagle - Wikipedia, the free encyclopedia

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84 300D, 82 Volvo 244Gl Diesel