Iron rations question

[Kats]

Does anyone know a way to tell the reproduction iron rations from the real ones? I'm talking about the small bagged ones that had a tin of food and package of crackers in a paper sack. Thanks

[donaldjcheek]

It is almost impossible today to find slab-sided cans, i.e. without reinforcing ribs. Also, most genuine WW2-era German cans had a code embossed in the lid. Today, such codes are stenciled or screened on. Another thing to look for is the thickness of the can wall - cans back then were noticeably thicker.

[Kats]

thanks.
i was hoping to avoid opening them but i will open one to check it out.