Original WWII manufacture German Model 41 Ammunition Cans. This is the later War pattern with the flat top. These cans have been cleaned, stripped of all old paint, then refurbished with a correct shade of dark yellow (dunkelgelb), with new die cut gaskets.
Most if not all are maker marked on the lid under the handle, but sometimes the stamps are very, very faint. Most of this type of can only has a 3 letter code. Dates or WaA stamps are less common.

Note: These are 80+ years old! It is highly likely that some evidence of past use & age, such as dings, dents, and minor pitting will be present. There might be a scuff or chip in the paint from moving them around- they're ammo cans, not new cars. That said, these are all in nice condition- we don't fool with cans that look like they were tossed down a mountain.