I purchased a 1911A1 Colt from a fellow that had it issued to him during WWII. He was a local SW Ontario farm boy that ended up serving in the RAF in India. He said one day they came around and took their .380 Enfield revolvers away and gave them the .45s. He put it in the pattern 37 web holster he had, which was actually for a .45 revolver. He brought the hole rig home at the end of the war. The only way I can make sense of this is that maybe they didn't keep track of the serial numbers of the Lend Lease items very close. He added that he never liked the .45 as much as the .380 because it was too heavy.