XJF438436 A View of the Pont-Cysylltau Aqueduct, 1861 (engraving) by English School, (19th century); Private Collection; (add.info.: engraved by Percival Skelton (dates unknown); Pontcysyllte aqueduct carries the Llangollen Canal over the valley of the River Dee in Wrexham, Wales; it was completed in 1805; Thomas Telford and William Jessop; longest and highest aqueduct in Britain;); English, out of copyright.