T-shaped element made from a short square bar tenoned through a larger rectangular crosspiece and peened at top. Opposite end of the square bar is punched with a circular hole, while the crosspiece has two rectangular slots or through mortises running front to back at one end and two offset rectangular pockets or blind mortises at top and bottom of the other end. Yellow chalk marks across one side of crosspiece.
Maker is Keyser Brothers Iron Works, 4041 Ridge Ave. in Germantown, Philadelphia, PA, 1928-1971. Run by James Moore Bryant Keyser (1902-1977) and master blacksmith Howard Keyser III (1904-1980). Specialized in residential and ecclesiastical ornamental wrought ironwork, including the High Altar Gates in the National Cathedral, Washington, D.C. The forge was housed in an 1850s stone industrial complex that was dismantled in 1971 (documented by HABS/HAER).