I have four shell cases that my father brought back from the war. Two large two small.
The large ones are approx 10 1/4inches high. Both Flak 18 & dated 1937 & 1938
The smaller ones are 4 1/4 inches high one has the writing MP1942 AL. underneath it has 20-MM-MK-2
I would be interested to know of their worth. I always thought they were RAF shells but could be german Im sure the ensigna is RAF. (Like a bird with three stripes going out from each side)
I dont have photos of them but will take some and post them to the site. I have just come on here this evening so have yet to figure how to upload photos.
Sorry this sounds a bit vague but my knowlege of this subject is very limited.