The Penny Black, issued in Great Britain in 1840, revolutionized postal systems. This small, unassuming piece of paper, featuring a profile of Queen Victoria, represented a significant shift from pre-paid envelopes or... Read more »
A small label, typically affixed to mail, serves as pre-payment for postal services. A common example is the rectangular piece of paper attached to letters and packages, indicating that the sender has... Read more »
