Two casts, obverse and reverse, of a commemorative medal. Obverse: Large fleet of ships. Legend: 'UNA REGIT CUNCTAS SED REGAT IPSE DEUS.' (One ship rules the rest but may God rule it). Exergue: ' M. DC. LXXV.' Reverse: View of Hamburg, shield of arms of city below. Above, two cherubs support a cushion with the word 'Jehovah' in Hebrew. Legend: 'HIC . SITUS . EST . URBIS . QUAM . TUEARE . DEUS'.( Here is the site of the city. Mayst thou protect it, oh Lord.) Exergue: 'HAMBURG'.