Overall Condition:
Weight: ~29g
OD:
Thickness;
 
Description
Obverse
Bust of Nelson three-quarters left, in uniform and hat.
Lettering:
HORATIO VISCOUNT NELSON
BORN, 29th. SEPTEMBER, 1758.
DIED. 21st. OCTOBER, 1805
REG. No. 311490
Reverse
A view of H.M.S. Foudroyant at sea, the legend with details.
Lettering:
"FOUDROYANT". LORD NELSON'S “FLAGSHIP.”
COMMENCED BUILDING, 1789.
LAUNCHED AT PLYMOUTH, APRIL, 1798.
WRECKED AT BLACKPOOL
JUNE 16th.1897
MEDAL STRUCK FROM COPPER OF VESSEL AFTER BREAKING UP
 
This is a rare example in NUNC condition which comes in its original box with its original protective pillow and ink stamp. 
 
 
Ref:
https://en.numista.com/catalogue/exonumia76652.html
Numista Rarity index: 87