I was looking with interest at an unnamed hammer Drilling last weekend.
Its chambers were 16g, and 6.5x58R with a recommendation for an 8.2gram copper-jacketed bullet on the rifle barrel but no charge weight. Unfortunately (inexplicably?) the 6.5x58R is not an officially obsolete cartridge in the UK.
The engraving was comprehensive and attractive, in a style seemingly influenced by the Art Nouveau movement.
I was surprised, however, to see a proof date of "5.37". Were German makers really producing hammer/Lefaucheux guns that late, or was this an older gun (pre.1890) that had dodged the proof house for several decades?
Regrettably, I couldn't make out a mark that would let me identify where it was proofed.