Turks and Caicos, 1979 Gold Proof 100 Crowns, ‘Investiture of Charles as Prince of Wales’, Elizabeth II. 

Gold weight: Pure gold content .2896 Troy Ounce, Diameter: 33 mm.

This example is proof, fdc, housed in a velvet case with certificate. 
£650

1810 Third Guinea, George III laureate head, reverse, Crowned value, S.3740.

This example has been slabbed by NGC MS63. Choice mint state, rare in this grade.
£1,100

1808 Third Guinea, George III laureate head, reverse, Crowned value, S.3740.

This example has been slabbed by NGC MS61. A mint state example, in our view strictly graded, scarce.
£1,100

1714 Guinea, George I (1714-27) ‘Prince Elector’, first laureate bust, reverse, crowned cruciform shields, incorporating the arms of Hanover, sceptres in angles, Schneider 544; MCE 245; S.3628.

This example has been slabbed by NGC MS64, ‘TOP POP’. A truly magnificent example of a very rare type Guinea.

It is without question one of the finest known examples, excessively rare in this grade, a magnificent coin.
£36,000

1725 Half Guinea, George I  second laureate head, reverse, Crowned cruciform shields, sceptres in angles, S.3637.

This example has been slabbed by NGC MS64. This coin is an outstanding mint state example, a superb piece.
£7,750

Richard II (1377-99), Noble, King standing in ship with sword and shield, London, type IIIC, trefoil by shield, French title, mint mark cross pattee,  reverse, R in the centre of a cross, crown over lion in angles , lis in angles, 7.73gms, S.1657.

This example has been slabbed by NGC AU58, in our view very strictly graded.
£8,000

1651 Unite, Commonwealth (1649-60), English shield within wreath, THE.COMMONWEALTH.OF.ENGLAND, mint mark sun, reverse, 1651.GOD.WITH.VS, conjoined shields of England and Ireland, XX above, weight 9.12grms, Schneider 339; N.2715; S.3208.

This example has been slabbed by NGC MS62+. It is superb mint state and the finest example we have handled. In our opinion is has been very strictly graded by NGC.
£27,500

1649 Unite, Commonwealth (1649-60), English shield within wreath, THE.COMMONWEALTH.OF.ENGLAND, mint mark sun, reverse, 1649.GOD.WITH.VS, conjoined shields of England and Ireland, XX above, S.3208.

This is the first year of issue, very rare, slabbed by NGC AU50.
£6,750