Watch List notes:

English pewter boatswain's whistle, 1500s-1600s.17 grams, 3-1/2" long. Rare signal whistle used by bosuns on sailing ships for commands and alerts, this an early, encrusted example with flattened bowl and some loss of metal. Found by a mudlark in the 1970s on the banks of the River Thames.With photo-certificate
($200-300)