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20th Century
General Issues
  20th Century 1917 to 1999 (#481 thru #3465) (booklets BK's integrated)
  21st Century 2000 to date (#3466 thru Current) (booklets BK's integrated)
Back-of-Book Issues
  Semi-Postal B1 thru Current
  Airmails C1 to C150 (booklets BKC's integrated)
  Air Post Special Delivery CE1-CE2
  Special Delivery E11 thru E23
  Registry F1
  Certified Mail FA1
  Postage Dues J79 thru J104
  Modern Officials O127 thru O163
  Postal Insurance QI1 thru QI5
  Hunting Permit (Duck) Stamps RW1-Current
  Junior Duck Stamps JDS1-JDS27
Modern Plate Block #702 thru current (New)
1. Images are  for reference puposes - the actual stamp received will match the item description as to grade.
2. Stamp technical information comes primarily from US Postal Bulletins (
3. Please make comments - we are trying to make the site user friendly and provide additional information to make the hobby more enjoyable.