The lens is in perfect shape. It's been loosely washed here to remove rust stains. Just needs a good final scour & wash.
The reflector is fairly crufty. The crust is hard and didn't come off easily even with a scraper.
The reflector took a good rust hit. Most of the mirror plating is gone, and the rusting pitted the bad part.
Not beyond repair though.
Still works good!
I haven't found any specs for this bulb on the net.
It was simply soldered in place.