101 x 73 x 163mm high. Weight 2.1kg. Drilled for display of twigs 

Part of the Bonnybridge brickmaker's name showing. The company produced bricks at Bonnybridge, Stirlingshire, Scotland, from 1874 to1971.

See http://myweb.tiscali.co.uk/stjosephsbonnybridge/Little%20history%20store/heavy_industry.htm

This particular brick was one I found on a beach in South Wales, where debris from a demolished factory had been washed into the sea.