Farhan,
We do not know if you need to check for watermarks on these stamps. The picture is too small to know if there is more than one variety of each stamp.
Information on watermarks is readily available on the net. If English is not your first language, I am sure you can find information in Urdu or Arabic by searching Google.
Here is an article on watermarks from Wikipedia ...
http://en.wikipedia.org/wiki/WatermarkBrian
Posted 07/15/2011 5:06 pm
