Expert friends of mine have given me the following limited information:-
coffee grinder hallmark/stamp
'Kahve öğütücü marka mührü'
4 KATLI GÖVDE / TESCİLLİ MARKA/GARANTİ
I am not sure but 4 bark means 4 different layer of brass.
BARK-FOUR / Ticari Marka / Garanti (Warranty)
It is possible that "BARK-FOUR" is actually a trade mark (marka). "GARANTI" refers to some sort of warranty. This item is probably very old. Warranty has to be very specific as you know. The mere word "GARANTI" is vague. How long and what terms?
Well done, Rallino! Of course:- Haci refers to the most famous master-producer of such bronze hand mills, Haci Artin. who until the 1970s ran a shop on Uzun Çarşı Avenue (İstanbul? Antakya?) where he not only made new mills but also repaired broken ones.