My guess too! Inks seem to be very collectible and that one is definitely old! It's sick, has an open pontil and very crude. It's hard to repro crude and that dirt sickness. The big question is now, do you tumble it to get rid of the sickness and risk breaking it? Depends on what it's worth now vs tumbled. Is it worth the gamble? You could send it out to a pro and put insurance on it...then if it breaks you would at least get your money out of it.