The crew of a M4A3 tank from the 48th Tank Battalion, 12th Armored Division loads 4.5 rockets into the T-34 Calliope rocket launcher during test firing near Obermorden, France on 3 March 1945.
Image can be found in "US Armored Funnies US Specialized Armored Vehicles in ETO in World War 2 (Armor at War Series)" by Steven J. Zaloga, 72 pages, Concord Publications.
Looks like a lot more than four and a half rockets just sayin