Sirmoor or Sirmur was an independent kingdom in India. Founded in 1616, the Sirmur State is located in the region that is now the Sirmaur district of Himachal Pradesh.
This small state of Northern India was with a feudatory relationship with the British Empire. A former kingdom in the Mughal Empire, it was invaded and annexed by Nepal in 1803. In 1815, the British expelled the Nepalese and re-established the rule of the raja of Sirmoor.
Sirmoor issued its first stamps in 1879. The stamps were only good for postage in that state. Sirmoor stamps became obsolete in 1901. The last postage stamp issue was a set of four stamps depicting the portrait of Sir Surendar Bikram Prakash with the value of 3 Annas.
The stamp is attracting active market in the US as well as the UK.
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