21. A night soil man who used to take away human waste to be used in fertilizer, Dunston, Lincolnshire, England, 1872.
22. Futurist artist and composer Luigi Russolo and his assistant Ugo Piatti with their intonarumori (experimental noise machines), in Milan, Italy, January 1st, 1913.
23. A Marine stands watch in an observation tower as Lieutenant Commander McElroy, the 3rd Battalion, 26th Marines chaplain, holds mass on Hill 950, Vietnam, 1967.
24. USS Mississippi (BB-41) transiting the Panama Canal during the 1920s.
#1 doesn’t show, here is the photo https://me.me/i/mmmmmmmmmmmm-a-1960s-coca-cola-advertisement-made-by-spreading-grain-5710049
Thank you.