World War I US Marines at marine base and at Philadelphia and Reading train terminal in large city in the 1920s

US Marines and bulldog in helmet pose by World War I marine recruitment poster designed by Howard Chandler Christy that has "Christy girl" in it / MS transport truck pulls up in front of bldg, marines are standing out front, marines jump out of truck, piles of supply bags in truck / marines march toward and past camera / VS marines marching / CU marine in helmet pointing rifle and turning / MS group of 7 marines try on helmets, streetcar goes by in bkgd / Pan row of marines standing in front of bldg holding rifles in front of them take off helmets and wave them / CU marines stands holding 10 helmets, marines come and grab helmets from him / truck with marines standing in back drives toward and past camera / VS troop inspections / silhouetted shot of marines at train terminal marching past camera / VS troops climb in trucks parked outside Philadelphia and Reading terminal, trucks drive away, pedestrians, automobiles and streetcars in street / MS troops jump down from truck and walk toward bldg / CU marine perched on duffel bag plays small banjo / Note: exact year not known