Although it appears to have too many gun-ports, (but I have not seen the plans) the artist, W.A.K. Martin, has a reputation of being spot on accurate with his US age of sail warship paintings. It is dated 1858.
View U.S. [Naval] Ship Wyoming After W. A. K. Martin; hand-colored lithograph; 16½ x 19½; Edition. Access more artwork lots and estimated & realized auction prices on MutualArt.