How has the design of Japanese 切手 evolved over time, and what historical or cultural events have influenced these changes?
What are the different types of 切手 available for collectors, and what makes each type unique?
How has the role and use of stamps changed with the advent of digital communication and electronic mail services?
What are some notable rare stamps, and what makes them valuable to collectors?
How do countries select themes and designs for their stamps, and who is responsible for this process?
What are the different types of stamps (e.g., commemorative, definitive, airmail) and how do they differ in use and design?
How did postage stamps originate, and what was their purpose in the postal system?
What are the historical and cultural significances of stamps, and how have they been used as tools of diplomacy or propaganda?
Can you explain the difference between definitive and commemorative stamps, and how each type is typically used?
In what ways have digital communication and technology impacted stamp collecting and the postal service overall?
