This appears to be an all correct Colt 1911 A-1 from 1943. The condition of the gun is excellent. I can see no arsenal redo marks on it. That does not mean it it was never back to an arsenal but it does not seem to be a refinished gun. The edges and lettering are all nice and crisp. The gun never saw much actual use or carry judging the the small amount of wear to the parkerized finish. The holster does show some use. The mag pouch looks virtually new and is of British manufacture. The 2 R marked magazines should WWII correct. At some point Colt stopped putting the serial number in the firing pin slot on the slide.
Without actually having the gun in hand I would say it is an all original WWII Colt. The holster, magazines, and pouch do not match the gun but do match the time period. The gun should easily sell for 2000 plus with the magazines. The holster is worth 75 to 100 or more since it is identified and has the history of your relative. This may or may not be the actual gun he was issued. The lack of wear says it saw little to no use or carry. There is a chance he swapped out his gun for one in better condition before he left the service. Pistols were the property of the US Army and not to be carried home however many seemed to go missing. These could also be bought as surplus from the DCM in the 1960s. All said and done a very nice gun and holster!
