This post card was sent from aboard the S.S. Edna ( H.M.S. Kent's prize ship) at Port Stanley, Falkland Islands, March 9th 1916. The Edna had been brought down from Peru and Midshipman Cowan was one of four officers that had charge of her.
HMS Kent visited Sierra Leone several times between 1914 and 1918..........these photos would have been taken during one of those visits.