This is one I got several years ago, and this presentation should mop up the East-Indian issues, for the time being anyway...
East India, 1865, 2a in brownish-orange...

Admittedly, I first thought it was the 2a orange of 1855, white paper, which is rarer, but the elephant's-head watermark on the reverse cannot tell a lie...

I did not need to restore that one. Fresh as daisy it was upon its arrival. Although, it might benefit, albeit only a little, by going "under the knife", so to speak.
Within the cancellation, the purple letters, "...S K N O...", elude me as to a place-name...

It may be a precursor to the perfin, that of a business, or company.
Incidentally, I don't collect perfins, as I don't like BB-holes in my stamps, unless it's mandatory, as within this example...
Great Britain, 1887, 2d in grey-green & carmine...
