Engraved plates (3) re Joyce's double-cylinder pendulous condensing engines. nd. The plates are engraved by George Aikman (1831-1906) of Edinburgh, and published by W. Johnson, Patent Office, Glasgow. Each is fragile, plate 1 being in two halves. Joyce's double-cylinder pendulous condensing engines nd
[Four engraved plates, published by W. MacKenzie. Oscillating engines and boilers of 'Leinster' and 'Connaught'; horizontal marine engines built by John Penn and Sons; expansive double cylinder inverted geared engines built by Randolph Elder and Co.; three-cylinder expansive engines built by Maudslay Sons and Field. See below] Four engraved plates nd.