Obverse:

ELIZABETH D G ANG FR ET HIB REGINA. Crowned bust with rose behind.

Reverse:

POSVI DEV ADIVTOREM MEV. Square topped shield over long cross fourchee dividing the legend. Date above.

Good fine, a scarcer mintmark.

Ex C. Comber Collection bt J. Hedges 1995

Reverse published in D I Greenhalgh 'The Galata Guide to Hammered and Milled Threepenny Pieces' 2016 pg 51 - E (This coin)