
I've just bought a scanner and I am starting to classify my P&R I stamps. I would like to have your help.
I am following Bardi classification.
I scanned the following stamps

I don't know why I can't see the right part of the picture just click here
let's number them in the following way r1s2 (it means row 1 stamp 2 from left to right)
Is this resolution good enough for paper classification?
- r1s4 and r2s1 are SF1
- r1s2 and r1s3 are M4
Are the above statements correct?
- It is not clear to what paper is r1s1 as it has some gum.
- r1s5 looks like different paper may be mi3?
I have a better back scan here but it is a 6MBytes file
Thank you very much for your help
Sergio