Posted on August 16th, 2015
On the barrel is inscribed:
DUMOULIN ARQer À ROUEN
Dumoulin was a gun maker (arquebusier; ARQer) and gun retailer in Rouen, Seine-Maritime, Upper Normandy, France. He must have procured a custom order from Lefaucheux of these guns to sell at his establishment.
All of the parts have part number “15 J” punched into them.
Based on the serial number and the frame design this would have been manufactured around August/September of 1861.