Royal Decree of March 2nd, 1891 kicked it all off for the 4th Proof using English Schultze & EC Powder, adopting the British Scales of 1887.

Royal Decree June 6th, 1892 required that once a gun passed the 4th Proof, it was to be stamped w/ barrel weight & chamber dimensions, with the exactly form of the chamber dimensions stamp not defined until the Royal Decree of November 18th, 1903.


Hochachtungsvoll,

Raimey
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