Hey,
Just checked my box of Pirates postcards for a Nationwide Belinda - no luck (although I did find a Lind, Merced, Bonds, and Drabek).
However I have two other items:
1990 Pirates team issue postcard - 3.75 x 6, Belinda throwing from mound, name in gold diamond at bottom
1990 Pirates ticket foldover card - 4.5 x 6.5, b&w, Drabek, Smiley and Belinda on bench
Let me know if you're interested in either! And good luck with your search.
DB