Yes you are right. According to it's catalogue description from the 1900's it is from the 'India-native Feudatory State of Bhopal. It is the 1/2 anna green issued in 1894, there is a slightly later issue which is bright green; one of those occassions when colour difference is very marked. It is infact a lovely stamp which the photo does not do justice to.
Of course you are right. 1/2 anna slate grey (type IV) 1897-9. Not to be confused with Type III which was issued late 1896 which is similar but slightly smaller and lighter print. I didn't know that there were lots of forgies floortrader so is this one real?
Faridkot which was a Sikh State of just 612 square miles and a population of 100,000. The ruler was Raja Bikram Sinh. No. 1 is 1 folus (4 folus to the anna) on laid paper,No. 2 is also 1 folus but on woven paper; while No. 3 and No. 4 are the 1 paisa both on woven paper. These last two are both Type III, but I think they have enough difference in both printing and colour to be considered different varieties. However, I have never seen Type III 1 paisa which looks almost identical, also ultramarine (like No.3) but has a slightly different script at the base.
I think another Indian state but better known. Where is this from.