Just Found Something Interesting

Hi, just found these 3 stamps and I have never seen previously
One in bluish colour like one on the right.
Can you tell me more about it?

Thanks in advance.

the stamp on the far right either came into contact with a chemical or it's a color trial proof that was for some reason postally used, but the latter is unlikely.
It is a very common stamp too. A large banknote issue of 1887 and printed in green in 1887 as opposed to it's former color of red brown before August 15th of that year.

It's scott catalog number is #213

Maybe that last one could be an odd color morph of #211D? (design of A57) but that's stretching things a bit. Someone will chime in with the answer.

The bluish color often is a result of someone bleaching the stamp in a water and chlorine mix. Green is basically blue and yellow and apparently the bleach sucks out most of the yellow. In an experiment many years ago, I did exactly this and ended up with a bluish stamp. I trashed it .

I like it actually! lol

I_Love_Stamps: here is link if you like it - http://www.ebay.com/itm/29090653021....m1438.l2649

Thanks for reply for me its just a curiosity stamp and I have no interest to buy it.