two pauly cartridges
13 15mm Pauly nhs, AIR-IGNITION sys w/fulminate inside nipple, heated air ignites it, 1.135”
brass ‘case’ & steel nipple o/a
14 15mm Pauly nhs, fired 1.085” 2-piece brass case, lead ball included, fulminate was smeared
in center recess for ignition
more info, which may show JP is partially correct. (about the patented by pauly part, though Pete’s cartridge is definitely considered a pauly cartridge)
François Prélat is the one who applied for the patent for the 2nd cartridge, he worked in association with Jean Samuel Pauly. He used a percussion pin to provoke ignition, which improved the invention of Jean Lepage who used a system where the fulminate was just poured into a pan near the breech.
The two had a shop, rue des Trois-Frères, in Paris.
Prélat later took some of this knowledge and applied for the patent for the invention of the percussion cap[/quote]
I checked some patents.
Francois Prelat never worked with Pauly (Pauly was already dead !!) and his patents have nothing to see with Pauly work.
Most of his patents refered to muzzle loading guns, or trigger assemblies.
One of his patents (about 1850) was for a ctge with a nipple but with flat base )
The adress of Prelat has never been Rue des 3 freres, but rue de la ferme des Maturins.