Here is a scan from what I believe to be an Imperial era Eickhorn catalogue. While this model doesn't seem to fit either Alsace example, #1131 or #1132, it looks a little similar to #1132 in general appearance & the scabbard fittings. The pommel on the posted example os clearly unlike either of these though. While any Alsace Feuerwehr piece is scarce, the deluxe models are quite rare IMHO. Sadly the blade on mine is unmarked.

scan0002.jpg (97.93 KB, 157 downloads)

GDC Gold Badge #290
GDC Silver Badge #310