Hi guys..I was going through different WW stamps which I don't normally do and removing hinges very carefully from each stamp..I found out some thing interesting about hinges...Some are easy to remove and some are HARD to remove.
Below is 2 pictures, I have gathered all the easy ones to remove and all the hard ones to remove..First a picture of 6 different type hinges of size and material that I found fairly easy to remove...see below.

Below are 3 sort of weird type hinges I have come across before that will tear a stamp if you are not really careful...see below

"A" is a sort of paper hinge as you can see.
"B" is a very sticky hinge that actually ripped part of the stamp.
"C" is a small hinge that to is very, very, sticky.
Now the question I have knowing this, is how does a stamp collector remove HARD hinges..??