Medal commemorating the destruction of the Spanish fleet off Dover, 1639. Obverse: Bird's-eye view of a naval action. Reverse: Inscription, within a wreath of roses, 'Aeternitati S . Ob Hisp . classe . navib . 67 spectatis belli ducib' naucl . milit 25m oniq' apparatu instructiss . illustr . Pr . Hen . Fred . ausp . a Martino Trompio Hollandiae maris pfect . 16 Sept 1639 navib tantu 17 aggressam, & seq . die circ . noct . iterum oppugnata, alteroq' die II navib . aucto dissipatam ac sub Angl . littor . castella cedere coacta, ibiq' per mense obsessam, tandemq' a Reg . decedere iussa 21 Octb . magna virt . deleta Ordd . Foed . Belg . F . F.' (The Spanish fleet of 67 ships after being attacked for three successive days by Admiral Tromp was forced to take refuge under the English forts, lay there blockaded for a month and subsequently, being ordered by King Charles I to leave, was destroyed.)