NEW YORK (CBS Connecticut) – How much do you think your baseball card collection is worth?

One woman from Boston found out hers is worth $1 million. Due to security reasons, she has only been identified by her first name.

“It hasn’t sunk it… I really couldn’t believe that it could worth that much,” Gale told “Antiques Roadshow.” It was just sitting in here in a desk drawer and I ran across it one day and decided I’d like to have it, not realizing at all what it was worth.”

WTVD-TV reports that the collection features vintage baseball cards of the 1871-72 Boston Red Stockings.

Gale told the Antiques Roadshow that she grew up outside of Boston and is a Red Sox fan. She didn’t want to sell her collection because she wanted to keep it in the family.

“When you look at memorabilia and you value it, you look at the historical importance of the players, the team, of the era, of the event,” Leila Dunbar, expert appraiser, told WTVD. “You also look at rarity, you look at condition, you look at provenance, and this has it all.

The station also reported that her collection has handwritten notes from Red Stockings players to the owner’s great-great grandmother after they stayed in her boarding house.

“These group of cards have never been out, we’ve never seen an early set of notes like this signed by these great hall of famers,” Dunbar added. “It’s the roots of Boston baseball.”