One possible explanation is the blade was an unissued one in inventory at Eickhorn. The inscription was ground off at the factory and used on the honor dagger. The Germans, as was most of the world, at that time were ultraconservative when it came to "making do." The economy in Germany was suffering terribly. I'm sure they had no concept of a "throw away" society. If such did occur, that would likely date the dagger to late 1934 to early 1935. Before a new barrage of posts saying I'm wrong comes in, I will note, again, this is speculation only, but certainly within the realm of possibility.