Poonch issued stamps from about 1876 to 1895, with the aniline printings dating from around 1887 onwards. (It seems likely that the printers bought small batches of paper and ink from the local bazaar as they were needed. This accounts for the occasional appearance of aniline.)
Poonch was ruled by a junior branch of the ruling family of Jammu & Kashmir, but issued its own stamps. Most of the surviving mail was directed westwards, to destinations in British India
but there was the occasional exchange of mail with big brother, Jammu & Kashmir:
You could visit poonchstamps.com for all you'd ever want to know about Poonch.