. . . . . . . "1846" . . . "51st Sikhs (Frontier Force)" . . . "51st Sikhs" . . . . . . . . . . "51st" . . . . . . . "1st Sikh Infantry" . . . . . . . . "Ekwanja" . "51st Sikhs (Frontier Force)" . "1st Regiment of Infantry, the Frontier Brigade" . "1st Sikhs" . "Drab; faced yellow" . "1st Bn (PWO Sikhs) Frontier Force Regiment; 51st The Prince of Wales' Own Sikhs (Frontier Force)" .