[null and void]

I might be able to convince myself that that is an impression of a seal.

It could just as easily be something transfered from another document, say one that was stored with the BC and pressed against in in a crowded file?

Good eye, though!

[jellybean]

It could just as easily be something transfered from another document, say one that was stored with the BC and pressed against in in a crowded file?

Could be, but I would think it would transfer over the print on the document, not under it. I won't rule it out though.

I'm off to work...check in later...