Medal commemorating the destruction of the Spanish fleet off Dover, 1639

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 vine leaves and grapes, 'Aeternitati S . Ob Hisp . classe . navib . 67 spec[tatis] bell[i] ducib: naucl . milit 25m oniq' apparatu instructiss . ill . Pr . He . Fred . ausp . a Mart[ino] Trom[pio] Holland[iae] maris pfect . 16 Sept 1639 navib tantu 17 aggressam, & seq . die circ . noct . iter[um] oppugnata, alteroq' die II navib . aucto dissipata ac sub Angl . littor . castell cedere coacta, ibiq' per mense obsessa, tandeq' a Reg . decedere iussa 21 Octb . magna virt . deleta Ordd . Foe . Bel . 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.)