[count-your-change]

The circumstances just sound a little too convenient. Fakes, very good fakes, are all too common, and very good fakes have been authenticated too.

But even if it proves to be from the fourth cen. there was a lot of garbage and fake gospels in existence then too.

[circlecity]

"...and very good fakes have been authenticated too."

Like the "ossuary of James." It was initially authenticated at the highest academic levels but was later shown to be fake.