John Keymors observation made upon the Dutch fishing about the year 1601 demonstrating that there is more wealth raised out of herrings and other fish in His Majesties seas by the neighbouring nations in one year, then the King of Spain hath from the Indies in four - Keymor, John (Printed from the original manuscript for Sir Edward Ford, 1664)
Goldsmiths'-Kress no. 01725. - OCLC, 20885727. - Reproduction of original from Goldsmiths' Library, University of London. - Wing, K390