~~~ and the last one selling in 2000, and an estimate of the value by one owner about 12 years ago was over $5000 and, since I am not involved with any of the four I wouldn't even attempt to guess a value.... Strange how no other examples except the drilled for mounting purposes by USPC turned up after all these years... and the few 10's that Mark Lighteman had were stolen on his way to a coin show from his hotel room and we never heard of them since... There should still be a few of the 50's out there for less than my $305 price...