I am doing some tests comparing the UV-blocking effects of Tru Vue Museum Glass and AR Reflection-Free glass on OBA papers and need a control paper that I know doesn't have OBAs. All I need is a piece 4"x6" or so (though larger would be OK), a scrap left over from cutting down a larger size would be fine, and it doesn't have to be pristine. I will be happy to send you a SASE envelope (I'm in the Los Angeles area). Another smooth surface white non-OBA paper would be fine too. Please send me a PM if you can help out. I am planning to post photos of the results (though I'm not sure how clearly the differences will show) to the forum when I'm done.
Thanks!