Antique Boxwood & Brass H.Hughes & Son Ltd, London “Capt Fields Improved Parallel” Rule 18 1/8 inches (46cm) Length 2 11/16 inches (6.8cm) Width I have not tried to clean the brass or the wood. The condition Commensurates with the age of the rule. Please look at the photos regarding condition I include one more rule but I do not know anything about this one. Dispatched with Royal Mail