M1861 Springfield lock plate, dated 1864 Parker, Snow & Co., Meriden, Connecticut. There is the eagle on the lock plate with U.S. underneath, 1864 date on the lock plate as well. Nice example of a contractor- made plate. Parker, Snow & Co. produced around 15,000 of this lock plate at their Meriden, CT plant and likely made for James Mulholland of Reading, Pennsylvania. This is an original piece that may or may not fit reproduction muskets. All sales final.