Les constructions de l'Exposition internationale de Londres 1851

Légende - Au droit circulaire : "THE BUILDING AT LONDON, FOR THE / INTERNATIONAL EXHIBITION / 1851" ; au revers circulaire : "THERE ARE 2.244 IRON GIRDERS, 3.300 COLUMNS, 202 MILES OF SASH BARS, AND 900.000 SUP.FT OF GLASS." ; au revers dans le champ : "THE MATERIALS ARE / IRON AND GLASS, / IT IS IN SHAPE / A PARALLELOGRAM, / 1848 FT LONG BY 408 FT BROAD, / AND 66 FT HIGH, / IT IS CROSSED MIDWAY BY / A TRANSEPT 108 FT HIGH, / ON THE NORTH SIDE IS AN / ADDITIONAL 938 FT IN LENGHT / BY 48 FT IN BREADTH; / TOTAL AREA OF SPACE / 855,360 CUBIC FT; / OR NEARLY 21 ACRES; / ESTIMATED VALUE / £150,000".