Watch List notes:

BRITISH VIRGIN ISLANDS. Tortola. 4 Shillings 1-1/2 Pence (Half Dollar), ND (1805-24). George III. PCGS VG-8. Countermark: VF Details.
KM-10; Prid-8. Weight: 12.2 gms. Countermark: Type II, TIΛTI⅃Λ within rectangular incuse, with semicircle above first T. Applied to a cut 1/2 17xx bust 8 Reales of Charles III of uncertain origin (though likely from Mexico). Host coin rather well circulated, with an even gray tone. Within the countermark, the recesses are even darker in nature, making the stylized script stand out that much more.

According to famous author and collector Major Fred Pridmore, the 1801 local act called for five silver denominations and one copper denomination. A total of 2,500 Pounds sterling was ordered to be cut and stamped and, except for cut quarters of the Pistareen, all silver denominations were to be stamped with word "Tortola," while the copper issues were simply stamped with the letter "T". Due to the lack of available money for use in commerce, these cut and countermarked coins continued to be utilized until 1889, accounting for the great deal of circulation seen by the hosts.

Estimate: $1000 - $1500