India issued a 20 paise commemorative stamp on July 31, 1973, honoring Allan Octavian Hume on his death anniversary, recognizing him as a founder of the Indian National Congress and a prominent ornithologist. The vertical, suede-grey stamp features a portrait of A.O. Hume.
Key Details of the 1973 Allan Octavian Hume Stamp:
- Issue Date: July 31, 1973.
- Denomination: 20 Paise.
- Subject: A.O. Hume (1829–1912), founder of the Indian National Congress.
- Design: Vertical portrait of A.O. Hume.
- Color: Suede Grey.
- Size: 3.91 X 2.90 cms (overall), 3.56 X 2.54 cms (printing).
- Significance: Honors his roles as a civil servant, politician, and “Pope of Indian Ornithology”.
- Philatelic Items: Available as single stamps, in blocks, and on First Day Covers (FDC).



