Letters K and G after caliber on German/Dutch cannon projos

#1

Several small-caliber cannon rounds in my collection have either the letter “K” or “G” printed on the projectile along with the caliber. For example:

35x228mm HE, Dutch (made for Germany??):
35G
HE
CTG DM 11
EMZ 79-6

27x145mm solid aluminum dummy, German:
27K
EX
DM 10
MW-86-9
Ch.Nr. ?14445

20x139mm break-up, Dutch (made for Germany??):
20K
DM78A1
MAN
LOS NWM-2-88-X

What do the letters “K” and “G” mean after the caliber? Is this strictly a German marking? Am I correct in thinking that the rounds with Dutch manufacturers are made for Germany, given that they have “DM” model numbers?

Thanks in advance for any input!

#2

K means “Kanone” - German term
G means “Gun” - English term

#3

German “DM” numbers are not only the proof for a German use. The DM numbers are used in international trade to show the manufacturing standard and the type of ammo (together with naming the caliber).

#4

Thanks very much! That has bugged me for some time.