(Note: Measurements are outside max. dimensions unless stated otherwise).
18th Century : Fern cup and reeded cover surmounted by flaming torch.
Height from underside of collar 48mm. (1 7/8")
Max diam. of cover 20mm. (3/4")
Collar diam. 12.5mm. (1/2")
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.