A Wise's patent staff with integral locked metal tickets dating from 1880 measuring 14in long. Used to demonstrate the principle of the patent (No.1030 of 1896) the staff is engraved A to B and B to A. The key for one set of tickets is present, as are two metal tickets at one end and three at the other. The back of the staff is engraved with the words 'Wises Patent' and 'McKenzie & Holland Worcester England'. Berkeley Deane Wise (1853 - 1909) held various railway and architect roles including the Chief Engineer of the Belfast & Northern Counties Railway. Raynar Wilson's book Railway Signalling includes a drawing and description of the staff. A second such staff is known to be housed at the National Railway Museum in York.