new Weston panel meter, calibrated in "percent of rated current", with scales for 50 cps and 60 cps (that dates it, no?), model 1534, it says "FS=5A" which makes me think that full scale will be 5 amps, it's marked "sealed, do not open, ruggedized", 2.5 inch round meter, total OD with flange is about 3.5 inches, box includes an envelope of mounting hardware. I believe this came off of aircraft ground support equipment. $6 for the meter, I don't think the box will fit in a flat rate envelope, and in the box it weighs a little over a pound, so let's say $5 for shipping.
let me know if you want this (there may be more, I dont' know yet - found a new source of interesting goodies)