This Rare SS prototype dagger is 1 of 2 known daggers from this maker in existence. The one being shown on this forum comes from the Late John Pepera collection...and then into the hands of dealer Craig Gottlieb
The other Alcoso example belonged to the Late advanced collector Robert Waites.
In Tom Wittmans SS reference pgs 643-650..examines both examples with noticeable differences.
The Producer Paul Muller of Dachau..also produced 2 separate examples located on pgs 651-655 of the same reference.
The photos below would best describe what I cannot..as this dagger is making its appearance in detail for the first time on this WRF forum and on the GDC.
The statement below is from C.G. who acquired this rare dagger back in 2008. Presently this dagger resides in a private collection.
"This dagger was the property of recently deceased collector John Pepera, and it was my honor to have purchased it along with another dealer, many years ago. I was sworn to secrecy until he passed away, and I am now free to share these wonderful photos with the collecting community. This is THE SS Prototype that is known in the annals of dagger collecting history. I cannot describe this dagger to the incredible nature of its design and construction. So I'll let the photos do the talking. And yes, the dagger was sold in 2008.