The Royal Garter in gilt. In the centre Queen Victoria’s monogram ‘VRI’ in silver. To the reverse two copper loops north-south.
2nd Queen Victoria’s Own Sappers and Miners Officer’s Collar Badges
The British & Commonwealth Military Insignia Database
Military Badges and Buttons of the British Empire and Commonwealth
Ashok Nath in his book: Sowars and Sepoys shows these as officers collar badges to 2nd Queen Victoria’s Rajput Light Infantry.