"Halley’s Diving Bell The diving bell made its appearance in the 16th century, under the name campana urinatoria, and accounts can be found of its use in the 17th century to recover sunken treasure. One adventure raised gold, chains and other…
Folded sheet of paper, when opened reveals window aperture, compass bearings, names. Record of astronomical observations? Inscription: On front, hand-written in ink: Presented by ?? at the College of ?? to Robert Wilson.