half-dozen on the half-shell

Early Colonial settlers would eat oysters by the gross (144), rather than by the dozen, with per capita consumption at 10 bushels per year.

Abraham Lincoln used to throw parties at his home in Illinois where nothing but oysters was served.

The "Oyster Line" brought oysters westward via stagecoach to settlers with unwavering penchants who ventured into the wild frontier in search of new land. Hangtown Fry, a then-expensive dish of oysters and eggs, was created in 1849 at Cary House during the Gold Rush Days.

Nowadays, in Europe, a dozen (12) is considered a standard serving size for a course, whereas in the US, a half-dozen (6) is the norm. Americans alone consume over 100 million pounds of oysters per year.

(just picked these a few hour go. sweet and salty)