I expect that you will find that Raymond Guignant in Rouen(Normandy) was a retailer and/or a finisher/repair shop. He probably ordered the gun made to his customer's specs from someone in the Liege trade. Very likely that he knew such tradesmen well; probably closer to them than to the French trade in Paris and St. Etienne. Had he built the gun, he would have had it proofed in France.
It appears to be a well made "B" or "C" grade (OQ3 or OQ4) gun - the "Birmingham" style flatback action is a give away that it was not built as a "best" grade gun; the Liege trade was well aware that the "stocked to the fences" style was a fashion hallmark of "best" grade guns by this date. Liege guns of this grade tend to perform very well. Price aside, you have acquired a very nice gun. Enjoy.
