Here some more images of this saber...
There is no numeric markings.
Its known that Weyersberg, Kirschbaum & Cie was making sword replicas. To me this model looks like a 1855 Bavarian Artillery Officer's sword i've seen once. That one was made by WKC circa 1910. It makes sense that a replica wouldn't have a serial number.
I don't know much about German swordsmanship tho, just a thought.