"J. Forster" wrote: > http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3033485523&category=4675 > Are the bare aluminum ART-13's rare? (BTW, I did not bid) I believe this is that gray paint you see on some of the radio equipment that was in aircraft that were mothballed. I have some pieces that are done this way. I don't know what the gray paint was all about. Does anyone? Dave S.