Elizabeth I sterling silver shilling or 12 pence coin.
Hammered coin issued 1587 to 1589, mint mark crescent (defines date range attribution), Spink 2577, sixth issue, large module approx 31mm, 5.84g.
Certified by NGC to VF Details Reverse Graffiti (in field adjacent to shield, well blended and not a major distraction).
Superb detailed portrait, well struck, centered and with full legends.
Obverse: ELIZAB D G ANG FR ET HI REGI, crescent mintmark (Elizabeth by the grace of God Queen of England France & Ireland), crowned bust left.
Reverse: POSVI DEV ADIVTOREM MEV (I have made God my helper), arms of Great Britain and France.