Obverse:

ELIZAB D G ANG FR ET HIB REGI. Crowned bust 6C l. with rose behind.

Reverse:

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

Edge nick, light scratches otherwise good fine or better, very rare year with a very rare overmark of a sideways 9? or ᵒ (for 8)? over 7? 

Ex W. Wilkinson Collection bt M. Trenerry, 23 May 2017

Ex P. Cattermole Collection, DNW Auction, 15 Sep 2015 - Lot 436

Ex J. Gardiner Collection, DNW Auction, 16 Mar 2011 - Lot 311