Like the flak 18, rescued before going on the laith to be restored to shiny! No idea what they were for one is 1936 the other 1940 the latter with a KM Waffen-Amt Mark. I have tried to hi-lite where the markings are as they remain uncleaned.
They are 75cm high and I recon 105mm caliber.
The top marking is a P over C/33.
Do any of you ammo buffs have any ideas?