Note 3 — Chapter V · How the People on the Island and Elsewhere Learned Wisdom.

Unfortunately for the success of Governor Kieft’s scheme, the Yankees on Connecticut River soon found that they could make wampum in any quantity, with little labor and cost, out of oyster-shells, and accordingly made haste to supply all the wampum that the wants of trade in New Amsterdam required; buying with it every thing that was offered, and paying the worthy Dutchmen their own price. Governor Kieft’s money, it is to be further noticed, had also in perfection that most essential attribute of all good money, “non-exportability.” Accordingly, when the Dutchmen wanted any tin pans or wooden bowls of Yankee manufacture, they had to pay for them in substantial guilders, or other sound metallic currency; wampum being no more acceptable to the Yankees in exchange than addled eggs, rancid butter, rusty pork, rotten potatoes, or any other non-exportable Dutch commodity.3