<prompt> Qedela umusho olandelayo: Kwenziwe uhlelo olukhethekile lokunyathelisa izitembu ze-Parcel Post zika-191213  <response>: I-PanamaPacific Exposition eyayiseSan Francisco ngo-1915 kusukela ezindongeni ezenza amapuleti okuphrinta alolu chungechunge lwezimpawu. Zibizwa ngokuthi Izinkomba Zokufa futhi zinyatheliswa ngokuqondile kusuka ekufeni ephepheni elithambile elikhanyayo elikhanyayo elilodwa ngesikhathi. Ngemva kwalokho izinsimbi eziqinile azinawo ama-perforations azungezile. 