My old man bought what is now my Drummond M Type in the UK circa 1952 from a secondhand dealer of some sort. The salesman told him it had been used to make aircraft parts during WW2. So I always imagined it had come from some factory with dozens of the lathes lined up running off an overhead flat belt or similar. But this lathe has had a shopmade threading dial added, graduated leadscrew handwheel, graduated tailstock quill, leadscrew swarf guards and so on, all pretty common model engineer's mods of the day, as outlined by Duplex and others in ME mag, so have to wonder if it belonged to some model engineer who made aircraft parts for the war effort on a contract basis in his home workshop. Guess we'll never know.
Whatever its history, it did some work at some point in its past, having worn out at least two half nuts and the bed dimensions indicate it has been remachined at least once while the standard headstock bearings were bored out and white metalled.
Whatever, the salesman saw the Aussie merchant marine engineer coming and sold him the lathe with a duff set of change gears that was nowhere near complete, included some bizarre oddball numbers of teeth and most were bored and keyed like Myford gears so did not fit the Drummond studs. To late to complain or exchange by the time the lathe reached home in Tasmania and was set up several years later! Such gears being unobtainium in the colonies it took 60 years odd before I used the miracle of Fleabay to complete the gear set.
I'm not sure what the old man paid for it, maybe 10 or 20 quid or so but the old lathe has more than earned its keep in that time.