GUEST: Well, I brought four hubcaps from Rolls-Royce.

My father was an apprentice at Rolls-Royce in the 1940s, and when Britain declared war, they had to convert the car production line over to airplane engine production.

And my father asked for a hubcap, uh, from the last line of cars they were making, and it happened to be, I gather, the Rolls-Royce Wraith.

And so he w, the manager in charge of the store parts handed him a box of four of these and told him to go away, and... (laughs): He, he, we've traveled with them all of my life.

We've always had 'em.

APPRAISER: That's awesome.

So you are correct.

They're for a Rolls-Royce Wraith, which would have been first introduced in 1938, and then quickly shut off in 1939 as Rolls-Royce entered the war effort for World War II.

Now, the fact that you also have your father's apprenticeship certificate is what makes this just such an awesome package for any collector of automobilia.

GUEST: Mm-hmm.

APPRAISER: There are two people who would like to buy it.

One who is A, someone restoring a Rolls-Royce Wraith, but then also someone who's just a pure automobilia collector who would love to have a piece of history...

GUEST: Mm-hmm.

APPRAISER: ...with having the locking center caps and the apprenticeship certificate.

GUEST: Yeah.

APPRAISER: So with that, the cool story, it's a pretty rare thing.

GUEST: Hm.

APPRAISER: At auction, for the center caps with the letter, we'd see it estimated, conservatively, $1,000 to $2,000.

GUEST: Oh, really?

APPRAISER: Yeah.

GUEST: Oh, that's wonderful.