This cast iron Victorian English Aesthetic Movement "Letters" slot is designed in the manner of Dr. Christopher Dresser. The "over and in" lifting hatch stays closed with gravity. Made by Archibald Kenrick and Sons (founded 1791) in West Bromwich, outside of Birmingham. (Exterior: 7.125" x 3.375" Slot: 1.5" x 5.25" Mounting bolts: 6.5" on-center) da12918c
c. 1878