Although it's not an officers match colt the SA used in the Kuhnhaussen manual for getting accurate dimensions for the book is a pre-war post war colt,they are one & the same as far as all the components & dimensions because the manufacture of the parts was done pre-war but assembled post war from warehoused components.Most of the pre-war post war guns were usually presented to celebrities,politicians etc.,some were also sold when an order was placed.This particular colt was owned by a former V.P of colt,he was V.P from 1947 to 1955 [I can't remember his name],after the book was finished Jerry asked me to fix anything that was wrong w/it & do an action job as a favor to him for letting Jerry use it for the book.So I believe the Officer match guns would have been done the same way,just my educated guess.