I have recently acquired a 1 1/2" 'Toffee Apple' Mortar round and the manufacturers name is stamped inside the socket where the rod fits. It's difficult to read, but I can make out 'WILL(E or B)****Ltd, with EDIN. 1915 below. Anyone any ideas who this company were/are? The 1 1/2" rod was made by ACME 18/11/16.