I scored it from a collector in Ohio. He's on the Vintage Double Hose forums and was selling off part of his vast collection. He has some really nice vintage double hose regs he's letting go. A tank like this is a rare find, especially in original packaging and unused. All I have left to collect is a backpack and vintage fins. I have a vintage USD Atlantis oval mask, Calypso depth guage, the '67 DA and a USD knife...the old ones with the metal pommel. I'm almost there....targeting a mid/late 60's USD kit. I'll be fun to play with, and I'l take it out to CSSP this summer, diving it Sunday afternoon after all the classes are done. I'm sure the new OW's will get a real kick out of it. So, this summer, if you see some dude on the plane looking like something out of Sea Hunt....it's probably me.