A queen closer is a brick cut in halves lengthways and used, after the quoin header to form the bond. A king closer is used for the same purpose, but is tapered in length from 114 mm (4 1/2 in. to 57 mm (2 1/4 in. )
H. J. Porter (Chairman - Technical Committee), Dictionary of Fire Technology, The Institution of Fire Engineers, The Victory Press (Leicester) Ltd. 1979 UK. (Fr Tech - Brit) {81}