Reconstruction of Swiss classics

Upon making a collection of Switzerland, I decided to get along to actively re-construction in order to earn points of knowledge. You can classify all the positions and plates of the early Swiss classics with some good handbooks.

First I classify my RAYON3 stamps. RAYON3 was printed in sinlge color and one sheet contains 180 stamps, 18th copies of 10 original plate. So you can easily distinguish 10 types by checking the red background curve lines.

As a result I have 6 types out of 10 already as I show here, however I doubt if position 9 is genuine or not.

I'll continue trying re-construction for the other stamps also. It needs knowledge and study instead of money. I can enjoy it with the same price of the covers.