No, I don't think it was vintage (or a gen) but it looked exactly like what you pictured. I'm not promoting CL. just mentioning that I saw it for sale.
I have a very similar TT sub I purchased almost 12 yrs ago. It was sold as a super rep from an outfit called "fakegifts". The band is thick gold wrap over brass but not solid gold. The serial number on the clasp should end with "18" for the 18k band
the tube is what the crown screws down on. I think that's one of the major faults with the upo's. Many people replace the tube with a gen tube. cost is over $100.