B & L England
This information was taken from the White Plains Historical Society website, which pictures the same plate.
 "The plate depicts the first White Plains courthouse (erected in 1758 on the current site of the White Plains Armory), where New York's 4th Provincial Congress received the Declaration of Independence; and where the charter creating New York State was signed on July 9, 1776. The building was later burned with the rest of the village on November 4, 1776 by American troops after the Battle of White Plains (against Washington's orders). This plate was struck in honor of the monument standing in front of the Armory and dedicated by the D.A.R. on June 14, 1910, which commemorates the old courthouse as The Birthplace of New York State."Â