This document was found in the Mission to Seamen Organ, during repair work on 17th Oct 1985.Documents: Patents. The following patents used in Mason and Hamlin Cabinet Organs, are nearly all owned and exclusively used by the Mason and Hamlin Organ and Piano Co.flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, document, mason and hamlin cabinet organs, mason and hamlin, organs, mason and hamlin organ and piano co.