Monday’s (Feb. 3) episode of PBS’ “Antiques Roadshow” finds a man in Detroit who brought in a 1964 passport belonging to Marvin Gaye.

“It came to me by pure accident, actually,” says the guest seeking an appraisal for the item. “For years, I worked for the Motown Museum here in Detroit, started when I was 18 years old. I was a Motown collector– anything Motown, I loved. And after a Motown musician had passed, we had gone to their house to pick up some items that the family wanted to donate to the museum, and they had said, ‘Is there anything else you wanted? Because otherwise, it’s going to be in the estate sale this weekend.’”

There were a number of albums and records the family offered the man, but he turned them down because the museum already had so many. However, the Motown collector in him couldn’t resist a good bargain.

“So I went back to the estate sale and bought some albums and 45s,” the man said. “When I got home, I was going through them and out of an album fell this passport. And so it literally fell into my hands.”

The Motown collector said he bought the album for 50 cents. After examining the document, “Antiques Roadshow” appraiser Laura Woolley said, “I wouldn’t put less than $20,000 on the passport if you were to insure it.”

Needless to say, the man was stunned.