Introduced in the 19th Century in Britain, what were Penny Black and Penny Red?
Adhesive postage stamp Postage stamps Post stamp Postage stamp Postage Stamp Stamp (postage) Postal stamp Postage stamp/how dispensed
adhesive postage stamp postage stamp how dispensed postage stamps stamp postage postage stamp post stamp postal stamp
postage stamps
WikipediaEntity
Postage stamps