The other GGG topics added since the previous digest ping, alpha:
Good design and craftsmanship—nice bevel on the curved blade—but the moment your stupid teenager uses the tip to pry off the horseshoe....
Or some people from Britain settled in France, or taught the ancient people across the channel how to make this. That scenario is equally plausible, and I doubt either theory can be proved conclusively hundreds of years later.
These were the earliest French communists.