Officials attach war bonds to the legs of pigeons and 'launch' them!
War Bonds By Carrier Pigeons.
Outside a building a group of military and civilian officials - one woman among them - watch as a pigeon flutters into the air. A portly General (?) and the woman attach something (presumably a war bond) to the leg of another pigeon and she throws it in the air so that it flies off. M/Ss of the portly man posing with a pigeon and fixing something to its leg.