As stated all authentic William Moore shotguns had the full name engraved, yours is a Belgium made gun trading on the name. From the 1880 untill 1911, and the during the 1920's and 30's Belgium shotguns were imported to the U. S. by the boat load. I have been told the sometimes the entire ships manifest was nothing but trade name shotguns. If you pull the fore arm you should be able to find the Belgium proof mark, ELG in a circle or oval , should be topped by a crown.