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- Classic U.S. Stamps
- 19th Century
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- 1900sScott 294-373
- 1910sScott 374-547
- 1920sScott 548-681
- 1930sScott 682-858
- 1940sScott 859-902
- One-of-a-Kind Stamps
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- Modern U.S. Stamps
- 20th Century
- 1940sScott 903-986
- 1950sScott 987-1138
- 1960sScott 1139-1386
- 1970sScott 1387-1802
- 1980sScott 1803-2438
- 1990sScott 2439-3369
- 21st Century
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- Certified Mail (FA)
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- Officials (O)
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- Scott O1-O9Agriculture
1873 - Scott O10-O14Executive
1873 - Scott O15-O24Interior
1873 - Scott O25-O34Justice
1873 - Scott O35-O45Navy
1873 - Scott O47-O56Post Office
1873 - Scott O57-O71State
1873 - Scott O72-O82Treasury
1873 - Scott O83-O93War
1873 - Scott O94-O120Soft Paper
1879 - Scott O121-O126Postal Savings
1910 - Scott O127-O163Modern Officials
1983 to 2009
- Scott O1-O9Agriculture
- Parcel Post (Q)
- Parcel Post Postage Due (JQ)
- Special Handling (QE)
- Postal Insurance (QI)
- Hunting Permit (Duck Stamps) (RW)
- Junior Duck Stamps (JDS)
- Modern Imperforate Stamps
- Plate Blocks
- Plate Number Coils
Go BackScott 2098-2101; 2101a
Scott 2098-2101; 2101a
20c Dogs
Perf 11 x 11 (BEP)
Reference Images
Scott 2098-2101; 2101a
20c Dogs
Pane Block of 4 #2098-2101a
(reference or stock image)Scott 2098
20c Beagle & Terrier
Pane Single
(reference or stock image)Scott 2099
20c Retriever & Spaniel
Pane Single
(reference or stock image)Scott 2100
20c Malamute & Collie
Pane Single
(reference or stock image)Scott 2101
20c Coonhound & Foxhound
Pane Single
(reference or stock image)
