Historical clue formulations

• Chemistry lab dropper — 2026-01-04
• Lab tube with a bulb — 2023-12-31
• Lab dropper — 2022-06-26
• Lab tube — 2021-02-26
• Lab vessel — 2016-01-30
• Lab tube — 2015-07-03
• Chemical dropper — 2013-03-31
• Lab tube — 2009-06-04
• Lab tube — 2005-08-07
• Lab tube — 2005-03-06
• Lab tube — 1995-03-26