Saw it Megadan: the bottom hardware/handle was designed to mate with a cabinet like this:
I have one of these but cabinet lost its handle and tolex; in process of putting back w/ black. 3X12AX7, 1X7247 driver, 2X6L6 - 50 watts. Big sound. Auction text contains the scary words: "Amplifier
appears to work, but fully untested .." Schematic available. cj