https://www.ebay.com/itm/155778259293

Unbranded four drawer 2x2 desktop card index in oak. See on 2023-09-24 offered for $124.99 plus $92.53 shipping from Hobart, IN. Overall 12" H x 15" W x 15" D, so likely for 4 x 6" cards though the listing says "The inside of the drawers are 3 inches deep, 6 inches wide, and 13 inches long."

Medium condition.

Cost per drawer: $31.25