A guess was that is was an early recipe for Rchling's Special Steel with some percentages of Wolfram, Nickel & Chrome and possible others. It was an attempt by the descendants of Johann Gottfried Rchling, no children; therefore nephews, that were developing a steel to compete with Poldi's Antikorro/Anticorro. I'm sure there is much more to the story. I'm curious of V. Chr. Treibel along with V. Chr. Schilling had the alloy steel market cornered and was also the source for this too? Any Triebel marks underneath?

http://www.doublegunshop.com/forums/ubbt...true#Post300321

Kind Regards,

Raimey
rse