Of course borders change from 1918 to 1934 when the Ehrenkreuz was instituted.
Here is an interesting example of that .
Bäcker Hans Barack Roagger in Apenrade was given this certificate by the German konsul. in June 13th 1936
And why was that ? The answer Apenrade is a town in Schleswig Holstein and after voting in 1920 when about 75% of the population wanted to belong to Denmark the area was Danish. Although the citizens in Apenrade was very close to Germany here 55,1 % voted for Germany.
So in 1936 Hans Barack Roagger was living in a Danish town!!