Thank you all for your suggestions. There is a paper attached to one
side of the copper, so the adhesive is not all that "gooey", but is
certainly industrial strength (it was used to line the walls of an
MRI room). I tried the goo gone (no success) and Oops! (no success)
and then a weak (nail polish remover type) acetone. That seemed to
work the best so I purchased some extra strength acetone to try on
it. I just have to figure out what type of container to do my soaking
in. I have some lovely large pieces I will probably have to cut
apart. Also, I was wondering if this will have to wait until the
weather cools off again... sunny AZ has been having 110 degree days!
I will take note off all the other chemicals noted (BENZINE and NOT
BENZENE, etc.) and try those after I am able to try the acetone.
Again, the wealth of knowledge on orchid is incredible. Thank you
and if I ever get it off, I will let you know!