Double barrelled smoothbore Jacob's .73 in percussion carbine, 1860; manufactured by Swinburn and Son; issued to the Scinde Irregular Horse after the Indian Mutiny, commanded by John Jacob, designer of this weapon; steel furniture including circular patch-box, bar and sling-ring and trigger-guard with Baker style spur; swivel ramrod with large circular head; twist barrels. John Jacob was a commander of the Scinde Irregular Horse and in 1858 raised the 1st Regiment of Jacob's Rifles.