Reichenberg is first mentioned in a document of 1348, and from 1622 to 1634 was among the possessions of the great Wallenstein, since whose death it has belonged to the Gallas and Clam Gallas families, though their jurisdiction over the town has long ceased.
Its principal industry is the canning of sardines; there are also clam canneries.
The valves of the giant clam (Tridachna) sometimes attain a length of 5 ft.
Dark wampum, which was made from a "hard shell" clam (Venus mercenaria), popularly called quahang or quahog, a corruption of the Indian name, was the most valuable.
A valuable product is a species of clam, the shell of which furnishes a specially iridescent mothero'-pearl, which the natives barter with the Japanese for inlaying lacquer.