What role have stamps played in cultural representation and national identity across different countries?
How do collectors assess the rarity and value of stamps in philately, and what are some of the most valuable stamps ever issued?
What criteria or guidelines do postal services use to determine the value or denomination of a stamp?
How have postage stamp designs evolved over time, and what historical events or figures have been prominently featured?
What are the key features and elements typically found on a postage stamp?
What are some of the most famous or rare stamps in history, and what stories or events are associated with them?
How do countries use stamps as a form of cultural expression, and what are some examples of notable commemorative stamp series from around the world?
What factors contribute to the value of a collectible stamp, and how can collectors assess the rarity and condition of their stamps?
How has the design and production of postage stamps evolved over the years, and what technologies are currently used in their creation?
What are the different types of stamps, and how are they used for various purposes, such as postage, revenue, or commemorative events?
