I put pics above. As far as I know 97 Metal Universe have no parallels. Base card is foil card with art back ground. The cards above are just the art with no foil, and a total silver foil background. I am guessing, but I figure the foil was a test to see how the background looked behind it.
There are in fact 2 versions for 1997 Metal. Base is color foil and the parallel is silver foil. *edit or were the silvers 1996?