Historical clue formulations

• Kibble form — 2018-07-20
• Pet guinea pig food, typically — 2016-02-07
• Some rabbit food — 2014-10-07
• Air gun ammo — 2007-05-11
• Granules — 1998-12-27
• Some ammunition — 1997-12-20
• Hail, e.g. — 1994-06-17