Who invented the first radio? Alexander Stepanovich Popov, Guglielmo Marconi or Jagadish Chandra Bose? All three men were contemporaries and were aware of the electromagnetic studies by Heinrich Rudolf Hertz, James Clerk Maxwell and Oliver Lodge, each of whom contributed to the basis of radio communications. But they did not apparently see the value in developing a communication system based on electromagnetic waves. So, if not these men, then who can claim to have 'the first' such apparatus? Well, if based on national pride, then the nation of each man makes the claim -- Russia, Italy (Ireland too, as Marconi was half Irish) and India (Bangladesh, as Bose was a Bengali). However, in the final analysis, it is the official documentation that awards the inventor the title of being 'the first". That said, the stamps below from Russia, San Marino and India honour each of these radio pioneers/inventors.
The 1895 radio depicted on this stamp is on exhibit at the A.S. Popov Central Museum of Communications named after him. The maxi card is one of only 10 printed and shows the Russian Physicochemical Society meeting when Popov first presented his invention.
INDIA POST AND BANGLADESH POST have both issued commemorative stamps of Bose.