As I've continued to catalog and go through all of the research I accummulated while working on my first book, the following article came to my attention for its oddity. It was published in The Fowlerville Review in 1883, G.L. Adams was the publisher and editor, and wrote this little blurb:
The smallest egg of the season was laid by a hen belonging to Amos Barnard. It only measured 2 1/4 x 2 1/3 inches in circumference, and is therefore too small for any practical purposes. Bring along your big eggs, gentlemen. Ye editor likes big eggs.