largest: 5/8 x 5/8 x 1/4 in. ( 1.6 x 1.6 x 0.6 cm )
Brass buttons; stamped marks on back.
stamped: a-x: "IMPERIAL STANDARD/H.W." (possibly Hiram W. Hayden of Waterbury, CT)
These buttons were found in the files of the New-York Historical Society's Field Exploration Committee.
Due to ongoing research, information about this object is subject to change.