Crown 1677 7 over 6, normally spaced 77, ESC 53, Bull 399, NVF/VF with some surface marks. Only a trace of the overdate is visible, with the lower left arc of the underlying 6 visible. (See London Coins Auction A174 Lot 1470 for comparison, and confirmation of the position of the underlying figure)
Estimate: 350-650 GBP