Originally Posted By: Ted Schefelbein
I'm pretty sure four palms was the old pre 1923 superior proof with black powder. My dog ate my copy of Wernsberger, but, it is in there...

Kennett says 4 palms are "Double proof (black powder) of semi-finished barrels at 20,500 psi, until 1924. Presently (1970) called triple proof at 18,000 psi."

Alan at Little Gun
http://www.littlegun.be/arme%20francaise/artisans%20c%20d/a%20darne%20gb.htm
4 palms = 30 grams Black powder, 180 grams of #8 shot, 1720 kg/cm²

Some really interesting Darne pictures on that Little Gun page by the way.

Originally Posted By: Robert Chambers
Those are Belgian doubles that were marketed in France, like the L'Abielle line. There were some exceptions. I'm not sure what year France and Belgium separated but I'm sure the border was imaginary in the minds of some.

1794 Low Countries and Liege conquered by the French
1815 Belgium part of the United Kingdom of the Netherlands
1830 Belgian Revolution
1831 installation of Leopold I as king
1839 independence recognized by the Treaty of London

Pete