There are numerous tile-works and potteries of fine ware; and a considerable trade is carried on in anchovies and oysters caught in the Scheldt.
The potter's clay of Ischia served for the potteries of Cumae and Puteoli in ancient times, and was indeed in considerable demand until the catastrophe at Casamicciola in 1883.
Pipeclay and china clay, from Kingsteighton, are shipped for the Staffordshire potteries, while coal and general goods are imported.
In 1905 Portland was the first manufacturing city of the state, with a factory product valued at $9,132,801 (as against $8,527,649 for Lewiston, which outranked Portland in 1900); here are foundries and machine-shops, planing-mills, car and railway repair shops, packing and canning establishments - probably the first Indian corn canned in the United States was canned near Portland in 1840 - potteries, and factories for making boots, shoes, clothing, matches, screens, sleighs, carriages, cosmetics, &c. Shipbuilding and fishing are important industries.
There are also large potteries, silk-mills, a brewery and a tobacco factory.