a small sample of the immense (seriously incredible) variety of Shell oil product containers that Fifties50s.blogspot.com has posted in a couple galleries

http://fifties50s.blogspot.com/2013/02/shell-yellow-oil-cans.html  and
http://fifties50s.blogspot.com/2013/02/shell-black-oil-cans.html
http://fifties50s.blogspot.com/2013/02/bidons-shell-3-couleurs.html
http://fifties50s.blogspot.com/2013/02/bidons-dhuile-triangulaire.html
http://fifties50s.blogspot.com/2013/02/shell-red-oil-cans.html
http://fifties50s.blogspot.com/2013/02/bidons-dhuile-conique.html
 which are broken up by the colors and shapes of the cans galleries, yellow, 3 colors, black, red, and triangular and conical