Upon it was pinned a four-leaved clover, dry and yellow also.
"The Gilded Age, Part 6." by Mark Twain (Samuel Clemens) and Charles Dudley Warner
For every girl in the club she had brought home a silver pin in the shape of a four-leaved clover.
"Holiday Stories for Young People" by Various
On the clover they will be about the size of a pin head or a little larger.
"The First Book of Farming" by Charles L. Goodrich
The nodules in clover plants vary in size, from a pin head to that of a pea, and they are frequently present in large numbers.
"Clovers and How to Grow Them" by Thomas Shaw