Quote ronvella : "I'm certainly no expert but....."

Are You joking? You are damned good.

Concerning the crown design, this M. J J Reeb is a

HOFBUCHSENMACHER
HOF / BUCHSEN / MACHER that means
COURT / RIFLE / MAKER
Reeb was a riflemaker for a court, a royal court.
We would say "by appointment of HM.. of HRA...

Sure this rifle is a gem.