printing plate 1/1 sent in june special-got back no grade-why?

i sent in a printing plate 1/1 from 2006 upper deck artifacts with a bunch of other stuff in the june special,but it was sent back-no grade-any idea why?i see no doifference than grading a reg card or auto card in the special that they did than grading this plate, i dont get it?anybody else get a plate back?Randy 




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Looking for Jonny Gomes cards, especially Triple Threads and printing plates. Will consider all cards, though. Got something? Contact me at c_u_l_1@yahoo.com
<< <i>at least you got a voucher. I have never even held a printing plate, does it need to be a thick holder? >>
No, they are extremely thin.
Looking for Jonny Gomes cards, especially Triple Threads and printing plates. Will consider all cards, though. Got something? Contact me at c_u_l_1@yahoo.com
randy