Obverse:

ELIZABETH D G ANG FRA Z HIB REGI. Crowned bust 1B l. wire-line inner circles.

Reverse:

POSVI DEV ADIVTOREM MEVM. Square topped shield over long cross fourchee dividing the legend. 

Possibly once cleaned and heavily circulated, fair with underlying details clear, very rare.

Ex C. Comber Collection [bt Stanley Gibbons 1979]