If it has a "Crown" over "ELG" in an oval the longarm experienced a re-enforced or special proof test with an acceptable pressure acknowledged by the German proofhouses beginning July 11th, 1893 for tubes to be imported into German and after October 18th, 1898 all tubes for breechloaders were subject to the rule. True the driving force was black powder but seeing it was to be an import for V,L&D into the U.S. of A. it may just have been a matter of simple economics just like many of the Sauers imported by S,D & G, V,L & D which didn't experience the voluntary nitro proof due to the extra expense.
Kind Regards,
Raimey
rse
