GUEST: Well, this was my grandmother's, and she had it over the kitchen sink on a shelf, and she'd always put her string in there.
APPRAISER: Mm-hmm.
GUEST: She'd go to the bakery and get a cake or something, and it was always wrapped in paper, which... And that was the jar, she stuck a string for future use.
APPRAISER: Well, it's a wonderful thing. I see we have an original maker's label in here, where it was made, in New York City. This dates from around 1880.
GUEST: Oh!
APPRAISER: These were made to be on display behind a bar to advertise the beer. In this case, Gambrinus Lager Beer.
GUEST: Yes.
APPRAISER: It has a reverse on glass applied label. This is a curved piece of glass, actually painted on reverse, and then applied to the mug. Most commonly, you find bottles, like a liquor bottle would say the, the name of the brand of liquor.
GUEST: Mm-hmm.
APPRAISER: And it would have a beautiful label on it. It's very rare to see a beer stein advertising beer with this reverse on glass. When I looked into the side here, I saw another little label, a little paper label with 50 on that one.
GUEST: Oh. Oh, I was going to have a garage sale.
APPRAISER: Mm-hmm.
GUEST: And I put prices on a couple of things I had, but I never had the garage sale. (chuckles)
APPRAISER: I wish I'd been at that garage sale. Because I'll tell you-- you know what this is worth?
GUEST: Haven't the faintest idea.
APPRAISER: Between $2,000 and $4,000.
GUEST: Oh, go on.
APPRAISER: Yes, indeed.
GUEST: (whimpering)
APPRAISER: So you have a real, real treasure here.
GUEST: (breathlessly) $2,000 to $4,000?
APPRAISER: Yes, at, at an auction, where you had some real competition, you could certainly bring $2,000 to $4,000. And who knows? Maybe a little more.
GUEST: (voice breaking) I can't believe it.
APPRAISER: Take good care of it.
GUEST: (whimpers) Well, thank you.