printing from a smooth surface on which the area that is not to be printed repels the ink. One form of lithography is direct lithography, in which printing occurs without the use of an intermediate roller or blanket. Some early Post Office <#seal=Seals> were printed from such direct lithography. Indirect lithography uses an intermediate roller or blanket, and is called <#offset>. See also <#offlith=Offset Lithography>.