“It depends on how bad you got hit the last show,” Brown said. “You’ve got to restock your inventory.”

Restocking inventory into each showcase could take as many as two hours itself, according to Brown.

“The coins aren’t just in chronological order,” Brown said. “They’re chronological and by denomination.”

His business is knowing what makes Barber half dollars, wheat pennies, buffalo nickels and mercury dimes valuable to collectors, so the more care Brown puts into displaying them well, the better chance he has of being found by a collector shopping for a specific coin.

Officials estimated vendors brought upward of a million coins to the show Sunday — counting how many were in rolls, boxes and on display — so the better Brown displays his coins, the more likely shoppers will be to find the coin they need fill the slot in their collection.