This thing is built like a brick shithouse. Anti-magnetic cast brass face and stamped brass case with brass screws, every range is fused, even has an optional 120V dial illuminator and overload indicator so you don't run your batteries down. It looks like a sci-fi prop, and is in pretty good shape outside. Inside is a different story, the batteries leaked at some point and alkaline/mercury cell corrosion is all over one side. It uses oddball 15V dry cells, and a 4.5V mercury cell, none of which are available today. It's also full of wax-paper capacitors which I guarantee you are leakier than a funnel. It didn't cost anything, so it goes on my electronics display shelf as a "Hey, that's neat!" piece. It was $63.21 in 1958, which is nearing $700 in today's scratch. It would have had a "Top Grain Leather" case, long since crumbled to the dust it so deservedly needed to be.