Jackson Model 591 Capacitor Checker
I got this for a good price of off eBay, but the seller didn't use any padding when the packed it so it arrived in rough shape. Every single piece of glass was broken, including the relatively expensive 6E5 eye tube (naturally).
Fortunately, the meter glass was easy to replace (but not necessarily to cut), and I have a few 6E5s saved from a Meissner Analyst that I had when I was a kid.
I replaced the non-mica reference caps (3.0 μF and 0.03 μF). I wasn't too fussy with the values, but it still turned out to be pretty accurate in the end.
I also replaced the filter caps.
The voltage selection switch was broken, so I installed a replacement.
The terminal board for the switch bank was broken, but it responded well to superglue and mechanical reinforcement (the black, insulated wire in the picture below).