6000785 George Challenger & Co pianos, George Street, Langham Street, London (engraving) by English School, (19th century); Private Collection; (add.info.: George Challenger & Co pianos, George Street, Langham Street, London. Advertisement in Scraps and Sketches by George Cruikshank (no publisher?s name, c 1885). This is a reprint of pages that originally appeared between 1828 and 1832.); by Look and Learn.