Hello,

Here a picture of my new flak 18 3.7cm case for my collection.
This is one of 5 .
Just curious to know if these markings are legit ?
Casings have been polished or treated with some kind of abbrassive i think ?
I bought them in this state , the other bottom markings are not this clear but still visible . These where found in their transport case i had been told and therefore in this state .

Kind regards and hoping for some answers .
Flak 18 3.7 cm