The small town where I grew up had one of those sitting beside the town hall & War Memorial cenotaph all thru the 50's-60's and 70's that all of us kids played "war" at on numerous occasions. Thru all those years the remembrance ceremonies were held beside it....until one year in the late 70's the town rented the hall to a group of engineering students from U of A for a weekend ...and the gun was never seen again.
I've often thought about searching for that old girl but never did, The ser# is probably on record somewhere yet but the actual Legion that it belonged to has long since disbanded and I don't know who the "record holders would be.