I am posting the photos of three of them.
The one on the top with with the funny locking and without most of its paint is a battlefield 1943 can.
The green one is a rare pre-war 1937 model.
The spotty one on the bottom goes with my German belt loader: http://panzer46.net/mg42board/viewtopic.php?t=4420
Maybe the can model depends on the year of production?
Manufacturer?
Purpose?
Your comments are welcome.
I want to restore all of my cans cans that need restoration. Advices are much appreciated.