Irwin Robert Weinberg (10 February 1928 – 2 May 2016) was an American philatelist and stamp dealer who formed the syndicate of Pennsylvania businessmen who bought the British Guiana 1c magenta, the rarest stamp in the world.
Irwin Robert Weinberg (10 February 1928 – 2 May 2016) was an American philatelist and stamp dealer who formed the syndicate of Pennsylvania businessmen who bought the British Guiana 1c magenta, the rarest stamp in the world. (en)
Irwin Robert Weinberg (10 February 1928 – 2 May 2016) was an American philatelist and stamp dealer who formed the syndicate of Pennsylvania businessmen who bought the British Guiana 1c magenta, the rarest stamp in the world. (en)