See A. Laméris, 'Jacob Sang, Glasgraveur', in Vormen uit Vuur, 1996/1, nr. 157, p.7 for the illustration of the etching by A. van der Laan (circa 1690-1742), called 'Het Harpoeneren van de Walvis, of inwerpen van 't Harpoen'.
Hunting the whale in icy waters around Greenland used to be a dangerous but lucrative undertaking. The safe return of the whaler was therefore a good reason for a whaling company to show its appreciation to the management and skipper by commissioning a goblet.
Davis Strait, situated between Baffin island and Greenland, is the entrance to Baffin bay from the North Atlantic. It is a large stretch of water over 950 kms. cross at its greatest width and never less than 300 kms. wide.