A Civil Gliding Class “B” Proficiency Button-Hole Badge Archive Royal Naval Air Service Officer's

Royal Naval Air Service Officer's Commission Document (inscribed "By the Commissioners for Executing the Office of Lord High Admiral of the United Kingdom of Great Britain and Ireland

worn yet with zero enamel loss

in very fine condition with bright colors

Russian St

With original bestowal documents

A Civil Gliding Class “B” Proficiency Button-Hole Badge Archive Royal Naval Air Service Officer'sIn silvered bronze and blue and white enamels; measuring 22 mm in diameter; contact marks but otherwise extremely fine condition. Footnote: The International Aeronautical Federation awarded a series of proficiency badges to glider pilots on their successful completion of the appropriate tests and gliding trials. The B class certificate was awarded for a 60 second solo flight with an S turn maneuver.