A Rare George IV Board of Ordnance Painted Cast Iron Architectural Plaque, C.1825

A rare and impressive George IV painted cast iron architectural plaque c. 1825. Richly cast in high relief, the plaque is surmounted by the royal crown above the cipher IV GR, enclosed within an elaborate wreath of oak leaves and laurel incorporating a heraldic rose and shamrock. To the lower section are the letters B O, divided by the British Government Broad Arrow.

The Broad Arrow was the official property mark of the Board of Ordnance, the government department responsible for Britain’s arsenals, fortifications, magazines, military stores and ordnance until its abolition in 1855. Following an order issued in 1806, Board of Ordnance property was routinely marked with the Broad Arrow, often in conjunction with the initials B ↑ O, before the familiar W ↑ D (War Department) mark came into use after 1855.

The combination of the George IV royal cipher, the Board of Ordnance initials and Broad Arrow, together with its substantial architectural construction and original fixing points, suggests that this plaque was produced for permanent display on a Board of Ordnance property. Whilst its precise original location is unknown, it was almost certainly intended for a government or military building and may have identified an armoury, magazine, arsenal, ordnance depot or other significant Board of Ordnance establishment.

Unlike the functional property marks more commonly encountered on ordnance equipment, this example is unusually decorative, reflecting both its official status and architectural purpose. The quality of the modelling is particularly noteworthy, with crisp relief to the royal crown, wreath and lettering.

The plaque survives with what appears to be its original polychrome decoration, retaining black, red, green and gilt painted finishes which beautifully enhance the quality of the casting. The reverse remains untouched, displaying its original hollow-backed construction with integral strengthening ribs, characteristic of high-quality early nineteenth-century architectural ironwork. The survival of its early painted finish greatly enhances both its historical interest and decorative appeal, as examples retaining original polychromy are particularly uncommon. This also suggests it wasn't exposed to the elements.

Examples of this type of Board of Ordnance architectural plaque are seldom encountered, particularly retaining what appears to be their original painted finish. Combining direct links to Britain’s military administration with exceptional decorative presence, it is a particularly scarce and visually striking survivor from the reign of George IV.

Measuring: 53 cm tall (approx 21")

British, c. 1825