Watch List notes:

Stone cannonball from the Spanish Armada (1588). 7640 grams, 7" diameter Found by commercial fishermen in the mid-1900s off Nieuwpoort, Belgium, in an area of heavy action between the Spanish and English fleets in 1588, somewhat larger in size than the usual as from a siege cannon "bombard," very good condition with light surface concretions and pitting from long immersion. With photo-certificate.

Estimate: $400 - 600