First World's Fair. Set of 2 rare booklets, published... Lot 632

[First World's Fair]. Set of 2 rare booklets, published on the occasion of the London Exhibition 1851: Universal Exhibition of London in 1851. Participation of France, organization, administrative process and statistical results of its exhibition. Paris, Dupont, 1852. Large in-8 paperback, printed cover. 84 pp. London exhibition 1851. Erard's pianoforte. Small in-4 paperback, printed cover of 8 pp. and 3 plates. Booklet written in English describing with sketches the design of the Pianoforte presented by Pierre Erard which won several awards.