For a real classic photo, check out this:
http://farm1.static.flickr.com/31/97104495_f5623890e8.jpg?v=0

Visit to England for the Coronation of King Edward VII, 12 August 1902.
flickr.com/photos/ethioblogger/97104495/

Caption: Ras Mäkonnen's cloak and shirt probably made by Serouphi Ebeyan, dress-maker to the Ethiopian Court.

Weapons:

Curved Ethiopian sword in leather scabbard;

(Rifle) probably Lee Speed .303 bolt action rifle(known variously in Amharic as dimoftär, dimotfär, or dimetfor).