GUEST: This is the account book for Andrew Ellicott Warner, one of Baltimore's early silversmiths.

And apparently, he kept in the shop a inventory.

As people came into the shop and ordered things, he wrote it in the book.

He also recorded the weight of the piece.

And then when it was finished, he checked it off as being picked up and paid.

The pot has descended in the family.

And the family has said that it was Andrew Ellicott Warner's own teapot.

APPRAISER: In Baltimore during the time period of that 1810 to 1880 period, you had two prominent silversmiths.

You had Kirk and you had Warner.

This is all of the sales from 1839 to 1860 that the company A.E.

Warner Silversmiths in Baltimore had done.

Being able to see the actual copy of the sales book for Warner for a 20-some year period is, for a silver collector-- and I'm a crazed silver collector-- is-is ridiculous.

Every last name of a prominent Baltimore family, a street, a county, is in there.

The one I have open to is Charles Ridgely.

The Ridgely family had Hampton, which was the largest home in the United States in the 18th century, and the father was the governor of Maryland.

As it turns out, as we were looking through, I have the silver tea waiter, 189.5 ounces, for $473.12.

And I have that in my own collection, that's listed in the book.

So I was absolutely going crazy when I saw that there's the original sales journal for the Williams tea tray that's sitting in my dining room right now.

The teapot is an Empire Rococo style.

This is pre-1814, because in 1814, there was a law in Maryland.

It was called the Assay Law, which meant that in Maryland, they would collect a duty or a tax on the amount of silver that the silversmiths used during that year.

GUEST: Mm-hmm.

APPRAISER: So the Empire Rococo period in Baltimore started probably in that 1810 to 1813 range, and then it became Assay.

So the mark on here is a pre-Assay mark.

It's beautifully done.

You've got the serpent in the spout.

The handle is also a serpent with tail, and there are ivory joints to insulate it so that it would be not super hot if somebody was touching it.

Because of the age of the piece and the fact that the ivory has that yellow hue and has very old striated cracks, this would have no problem with the post-banned ivory issue that exists today.

This is 150-year-old ivory or so.

The pot being, by descendant in the Warner family, to any Baltimore silver collector, and there are quite a few, wo-- this would be a crown jewel for most people's pre-Assay collection, and having a-a family pot would be pretty valuable.

This would probably sell at retail in the $3,500 to $4,000 price range.

GUEST: Okay.

APPRAISER: The sales book, all the information about all the items, the weight of the item, the date that it started, the date that it finished, what it cost in 1840 or 1850...

GUEST: Right.

APPRAISER: ...is just invaluable to silver collectors.

I conferred with another colleague, and we came up with a price of somewhere between $8,000 to $10,000 for the book.

GUEST: Wow.

APPRAISER: Um, for a collector like myself, this is like heaven.

I'm-- I was thrilled to see it.

GUEST: So pleased you could enjoy it.

(laughs)