Historical clue formulations

• Some hard-to-find collectibles — 2023-11-27
• Hard-to-find game cards, in collector's lingo — 2022-03-22
• Most highly prized collectible coins — 2021-08-06
• Some steak orders — 2020-02-09
• Hardest-to-find items for a collector — 2015-09-30
• Hard-to-find cards, to collectors — 2003-08-31
• Some steak orders — 1994-12-25