Northamptonshire Regiment cap badge, bimetal

The Northamptonshire Regiment was a line infantry regiment of the British Army in existence from 1881 until 1960. In 1960 it was amalgamated with the Royal Lincolnshire Regiment to form the 2nd East Anglian Regiment (Duchess of Gloucester's Own Royal Lincolnshire and Northamptonshire) which was again amalgamated with the 1st East Anglian Regiment (Royal Norfolk and Suffolk), the 3rd East Anglian Regiment (16th/44th Foot) and the Royal Leicestershire Regiment to form the present Royal Anglian Regiment.
The cap badge featured a representation of a castle and key and the battle honour "Gibraltar", earned by the 58th Foot in 1779-1783. Below the castle was a scroll bearing the honour "Talavera", and the badge was encircled by a laurel wreath earned by the 48th Foot in 1809 during the Peninsular War