Many thanks to Dave & Wotan for their Puma photos.

The 1930 Puma Musterbuch catalog refers to these knives as "Stilets, Bayern-Messer" also called traditional Bavarian daggers that were worn with the lederhosen in a small pocket.
These knives are also known as a Nicker.

The 1930 Puma Musterbuch catalog shows that 4 sheaths were offered:
One with no metal fittings.
One with a belt loop and plain metal chape on the bottom.
One with the "V" notched metal fittings, this was probably the standard model.
One for the fancy "Weidmannsheil" model.

Last edited by C. Wetzel-20609; 01/25/2023 04:08 AM. Reason: I added more information.