Vintage Ceramic Canisters/Spice Set?

I have this ceramic spice and canister set and was wondering if I could find out a little bit more about it. I think that they were circa about 1920s-1930s but I'm not sure. They are white with a blue gvine print on 3 sides. They're pretty square. On the bottom there is an imprint of "KARiN" (spelled like that) and a green stamp of a ship with 3 sails (on the middle sail there is an intial of C.N.) then under the stamp it says Germany 30. If anyone knows anything about this it would be wonderful to know! Thanks!