COMMONWEALTH, 1650 GOLD UNITE

Commonwealth, 1650 Gold Unite of Twenty Shillings
Mint mark Sun, Tower mint.
Obverse: English shield within laurel and palm branch, legends in English language surrounding: .THE. COMMONWEALTH. OF. ENGLAND.
Reverse: Conjoined English and Irish shields, value .XX. above, beaded circle and legend surrounding, with date (1650) at top: .GOD. WITH. VS.
S.3208; Schneider 338; Bull EGC 5 (R3); N.2715. 
35 mm in diameter, 9 grams.
A most handsome well centred, struck up and uniform example, struck on a full-size unusually almost perfectly round flan, with a superb reddish-pink golden tone overlying lustrous original fields, extremely fine for the type, a splendid example.
(Rated R3- Extremely Rare by Maurice Bull). 

* This series is the first of all the British coins to have legends in plain English.