Answer: postalcard

AnswerCrossword Clue
POSTALCARDLine from a traveler
POSTALCARDIts price has doubled.
POSTALCARDTwo-cent item.
POSTALCARDIt goes for three cents.
POSTALCARDMessage carrier.
POSTALCARDLetter's cousin
POSTALCARDPenny purchase, years ago