A 19th century gold box

A 19th century gold box
marked '56' and with maker's mark 'EU', and later Dutch marks, circa 1845
The front engraved with the Beurs van Zocher exchange building in Amsterdam (built in 1845), the base engraved with the building it replaced (the Beurse der Stadt), the scene taken from an engraving in the 'L'Illustration: Journal Universel', No 99, volume IV, January 18, 1845, length 8cm, weight 52gms.