Watch List notes:

Van der Hoef-penningen - 1930 - Medal (French language) 'Vijfde Internationale Luchtvaartcongres te 's-Gravenhage' by C.J. van der Hoef (KB.437, JP.231) - Obv. Two stylized seagulls flying above sea / rev. Large letter V with IEME above 5-line tekst - bronze 50 mm in box - aFDC