A Cavalry sergeant searching German Prisoners of War in WW I. He is wearing high leather riding boots (or leather leggings), breeches, a forage cap and a dark armband on his right arm. From CEF research forum (attached), Re: armbands : "Barris's Victory at Vimy", page 153 it relates the armband codes as follows: GREEN - scouts, for guiding advancing troops RED - messengers, running messages back and forth WHITE - mop up troops YELLOW - supplies, such as picks, shovels, waters, bombs BLUE - company signallers Possibly a double with 2007.420.001