[3] According to propaganda philately specialist Dave Ripley, the soldiers on the 1+2 rupees stamp represent three of India's best-known freedom fighters at the time (from left): Sukhdev Thapar, Bhagat Singh as standard-bearer and Shivaram Rajguru.
A very small number were produced of the higher values 1+2 rupees, which exist in three different varieties.
Due to the fact that this value was manufactured in a multicolour print, unfinished variants were discovered later.
There is a conspicuous plate error of the 3+3 annas stamp, which partly has a larger white, round spot left of the nurse's head.
The stamps of Azad Hind are listed in the Michel Germany catalogue under "Nationales Indien" ("National India") and bear the designations I to X ( perforated and imperforated).
[5] In 2016, the Netaji Birth Place Museum in Cuttack (India) published a brochure in which, among other things, the Azad Hind stamps were shown in "free interpretation".
[6] As the market value of the 1+2 rupees stamps has increased considerably over the years due to their rarity, forgeries are produced.
On some of these letters, as a "mixed franking", Azad Hind stamps were additionally attached and then cancelled.