Tuba stentoro-phonica, : an instrument of excellent use, as well as at sea, as at land; invented and variously experimented in the year 1670. And humbly presented to the Kings most excellent Majesty Charles II. in the year, 1671. By S. Morland. The instruments (or speaking-trumpets) of all sizes and dimensions, are made and sold by Mr. Simon Beal, one of His Majesties Trumps: in Suffolk-street