[Ejm1]

This is a blank index card signed in 2005 via the US mail that was rejected as not authentic at the Strongsville show this year by JSA. Does anybody have any thoughts as to why? I was told at the show that it did not pass and gave no details, he did ask how I got and I told him the mail he replied, "It did not pass today." Any help on this would be great.
Thanks.