A rack of postcards (left)
Apostcard was asouvenir in the form of a postalletter. Postcards contained images, oftenphotographs of speciallandmarks or objects with room at the back of the card towrite a letter.
In aholographic re-creation of1944,Brigitte had promised to write a postcard toBobby Davis, which was prevented by the outbreak ofthe war. When Bobby encountered Brigitte inSainte Claire, he told her she owed him a postcard. (VOY: "The Killing Game")
A rack of postcards was among the items on display atAlexandria Books. (VOY: "11:59")
While inspecting theprototypeNX-classstarshipEnterprise NX-01 from the outside in2151,Chief EngineerTucker jokingly askedCaptainJonathan Archer whether he planned to pose onEnterprise'shull for some postcards, when Archer insisted newly installedhull plating match thecolor of thenacelle housings. (ENT: "Broken Bow")
When theUSSRubicon prepared to enter asubspace compression anomaly in2374,Jadzia Dax toldBenjamin Sisko she'd send him a postcard, when Sisko expressed sorrow for not going along to explore theanomaly. (DS9: "One Little Ship")
In2401, a postcard for theplanetVashti hung on the wall of10 Forward Avenue. (PIC: "The Star Gazer") It was also present in aholographic simulation of thebar. (PIC: "No Win Scenario")