The leather had been freshly "recutted" to make in thiner by removing half of the material. This is why the reverse side looks so clean.
Switching to another issue, I would like to talk about the blade engraving. I proposed several technics to my client :
- gold "koftgari" engraving,
- simple hand engraving,
- acid etching
Gold was not accepted because, my client wanted the whole work to look only black and bright silver.
Acid etching was choosen because it was less expensive.
I picked up the sentence from a photo of an antique yataghan (found it it the forum archive...). I removed most of the (unwanted) ornaments and kept only the script itself. I had it checked with a friend of mine who can write arabic, and so confirmed the writing was correct, although the sentence itself was not arabic but turkish.
I covered the blade with graver varnish and reported the sentence on it, then dis the acid etching.
I don't know if acid etching was one of the "genuine" technics that were used in the old times with those blades. I never could tell from photos, as you must have a very close look to distinguish both...