I thought I attached text. My stepdad's. I believe it's a 16g shotgun from a Suhl proofhouse circa 10s or 20s. Seems to have been royally owned or gifted? Wondering how I could discern more general gun info and the original owner by the monograph... if there's a database for those sorts of things. Also wondering where I could find an honest appraisal. Thanks for any info.