rca projection set

[radio nut]

A friend is helping me with my rca 9 pc 41 -1949 projection set. He is cleaning up the rust and painting the chassis's while I do the rest.
Well today we got to looking at the concave mirror.....zero tarnish...shiny as all get out... and the coating silver is missing on a lot of it!
Does any one have a source for resilvering? there is no one in Lima, Ohio or any reasonably close larger city that I can find to re silver it.