Belgium black powder proofed. Stamped " FABRIQUES D'ARMES Fs DUMOULIN & CIE Liege" and "Belgium" on side of barrel, not stamped "black powder only," smooth bore, .50 cal. appears very well made, tight action, triggers crisp, nice case colors.....I can't find any info. I'm sure it's a early reproduction, any input would be appreciated....TIA......(This is also posted on THR)