So this 1976 ric is a dark semi transparent purple, which looks almost black from a distance. Don't know if this is the purpleburst or Burgandyglo (more purple than burgandy). The serial # is hard to read due to sweat corrosion. You can still make out numbers, but they are very hard to clearly be sure. Is there a CSI ;-)method to bring out the numbers? Tried pencil and rubbing with paper..doh no luck.
Thanks in advance Peter

