Copied from an early 1800s crescent-shaped table fork and boxes which are designed to be surface-mounted on the underside of a table. To buy the fork only, the reduction in price is shown below.
Centre of Prong to Centre of Prong: 2 1/4″ (57mm)
Thickness of Prong: 1/8″ (3mm)
Note: Main image is view from underside of clip – surface mounted boxes.