@JonesCollectable, the "cross in a quadrat" is the makermark of the drop forger who did produce the blade. Another one which comes to my mind is the prominent "CAH" (interlaced), when I remember right stands for the drop forge of Carl August Hartkopf, which can be found often on EICKHORN marked blades (as Hartkopf has been a relative of the Eickhorn family).
The "cross in the quadrat" can be found on blades of several different makers, one of them is also H�LLER.
Regards,

wotan, gd.c-b#105

"Never look for sqare eggs" as a late owner of an original FHH-dagger used to say.