Great Britain 1882 Isle of Wight to Ahmedabad India Sea Post Military Cover

Cover franked with 5d indigo, tied to cover by Shanklin squared circle (January 5), to Colonel Harpur at Camp Ahmedabad, Bombay, with "SEA / POST OFFICE / D / JAN. 12." c.d.s. and AHMEDABAD CAMP (Jan 21) backstamps, small central mark due to wax seal on reverse, else quite fresh and a rare usage from the Isle of Wight.