London Times, 19 December 1860, p. 7: IRON-CASED FRIGATE FOR RUSSIA.
We understand that the Thames Iron Works Company have received an order from the Russian Government for an iron-cased frigate of the Warrior class, but larger -- say, 6,320 tons, builders' measurement. Other vessels of the same class are to be built for Russia from year to year. The vessel is to be fitted with engines of 1,250 horse power.
Provided by Stephen McLaughlin