Adolph Koeppel (11 April 1923 – 14 March 2009) was a distinguished American philatelist and author who wrote a number of authoritative works on the revenue stamps of India and Italy that remain the standard works in their areas.
Adolph Koeppel (11 April 1923 – 14 March 2009) was a distinguished American philatelist and author who wrote a number of authoritative works on the revenue stamps of India and Italy that remain the standard works in their areas. (en)
Adolph Koeppel (11 April 1923 – 14 March 2009) was a distinguished American philatelist and author who wrote a number of authoritative works on the revenue stamps of India and Italy that remain the standard works in their areas. (en)