Here is another fire bayonet with an unusual logo that at times can defy a seller's attempt to describe it. It's the mark of Johann Leupold, Beyreuth. Leupold made SA daggers with at least 3 different logos & trade names, Leuco, Johann Leupold & Johnnswerk.
This particular mark is a variation that shows a stylized "L" with a sword with no name or location. This piece came from Bill Shea many moons ago, listed as an unknown maker. This is a long model with nonmagnetic pommel.