First of all, thanks to you both, your response were perfectly what i wa looking for.
(a little joke for Kubur, i like my books as i like my sword... original. Hahaha. I think, i'm a sword, but also a book collector

).
Actually, i was thinking it was an identification key of Islamic armourers, based on photography of marks.
Sadly, i can't read all thoses marks, so maybe it's not worth to buy it for now.
Nevertheless, do you know if there is an existant books about identification of islamic armourers marks on blades, based on photography ?
Thanks a lot,
Julien