Early C20th Middlesex Regiment Sweetheart Brooch

This is an early C20th Middlesex Regiment (Duke of Cambridge’s Own) Sweetheart Brooch, made from mother of pearl with a gilt and enamel badge mounted to the fore.
We are unsure on the dating of the brooch – due to the unusual nature of the diamond backing and the shape of the regimental badge we suspect this could be from the Second Boer War but it could be early First World War.

The brooch is in great condition, with limited wear to some of the enamel.  The original double coiled joint pin fitting is still intact and largely rust free.

The brooch measures 3.5cm tall.

The Middlesex Regiment served with great distinction in the First World War, earning an extensive list of Battle Honours:
Mons, Le Cateau, Retreat from Mons, Marne 1914, Aisne 1914 ’18, La Bassée 1914, Messines 1914 ’17 ’18, Armentières 1914, Neuve Chapelle, Ypres 1915 ’17 ’18, Gravenstafel, St. Julien, Frezenberg, Bellewaarde, Aubers, Hooge 1915, Loos, Somme 1916 ’18, Albert 1916 ’18, Bazentin, Delville Wood, Pozières, Ginchy, Flers-Courcelette, Morval, Thiepval, Le Transloy, Ancre Heights, Ancre 1916 ’18, Bapaume 1917 ’18, Arras 1917 ’18, Vimy 1917, Scarpe 1917 ’18, Arleux, Pilckem, Langemarck 1917, Menin Road, Polygon Wood, Broodseinde, Poelcappelle, Passchendaele, Cambrai 1917 ’18, St. Quentin, Rosières, Avre, Villers Bretonneux, Lys, Estaires, Hazebrouck, Bailleul, Kemmel, Scherpenberg, Hindenburg Line, Canal du Nord, St. Quentin Canal, Courtrai, Selle, Valenciennes, Sambre, France and Flanders 1914–18, Italy 1917-18, Struma, Doiran 1918, Macedonia 1915–18, Suvla, Landing at Suvla, Scimitar Hill, Gallipoli 1915, Rumani, Egypt 1915–17, Gaza, Jerusalem, Jericho, Jordan, Tell ‘Asur, Palestine 1917–18, Mesopotamia 1917–18, Murman 1919, Dukhovskaya, Siberia 1918–19