Doesn't ring a bell? I've never owned anything that takes BS#7 collets? You must be thinking of somebody else. My Bridgeport came out of a garage in Bethesda.
Ah- must be someone else... the guy happened to work at Dept of Energy in Germantown with my wife- whoever the guy was bought (I think) a B&S horizontal mill or maybe it was tooling some weeks before I bought the old American lathe. Somehow we met up on PracticalMachinist, so when I got the lathe I brought back the collets and my wife handed them off..