Cachet

A cachet is artwork on a cover for a first day cover or commemorative cover. It can range from a design at the left of a cover to one covering the whole cover.  File:Muskogee Lindbergh replica.jpg|US 1977 Spirit of St. Louis replica tour (Muskogee, Oklahoma). File:Canada KGVI FDC.jpg|Canada 1937 George VI FDC postmarked Vancouver, B.C. File:Sacramento pictorial.jpg|US 1976 overall cachet for train station reconstruction, Sacramento, California special pictorial postmark. File:US army FDC fluegel.jpg|US 1945 Army commemorative FDC, Fluegel cachet. File:USS Richmond Crosby.jpg|US Crosby photo cachet, USS Richmond pictorial cancel (1936). 

Illustrated advertising corner cards are not considered cachets. See: Corner card and Advertising cover.