(Note: Measurements are outside max. dimensions unless stated otherwise).
19th Century : Pierced interlaced foliage scroll narrow knob.
Height 50mm. (1 15/16")
Depth 33mm. (1 5/16")
Thickness (variable) 4.5mm. (3/16")
Screw thread length 22mm. (7/8")
Oval collar 14mm. (9/16") x 9.5mm. (3/8")
Small shoulder below collar which could be filed away. 6mm. (1/4") x 6mm. (1/4") x 1.5mm. deep (1/16")
It is recommended that if selecting screw thread option, a pilot hole is drilled and pre-cut with a steel screw of slightly smaller size before screwing in the casting to avoid shearing.