Are you sure gp meant Arabic the script, but not the language? If latter, it would be completely wrong (because it is Ottoman Turkish), if former, it would be slightly inaccurate.
I think so! Since they are referring to the characters in their old logo, which is (to my eyes) Ottoman Turkish alphabet, which is perso-arabic script. Did I get it wrong?
Hm yes, they probably meant script then. Fwiw, It reads "Avedis Zilciyan şirketi - Avedis Zilciyan company" of course the funny thing about Ottoman Turkish is that it is heavily influenced by Arabic, persian and later French, so the the sentence has a persian root (Zil) an arabic root (Şirket) 2 Turkish suffixes, -ci and -i , an armenian suffix and an Armenian proper name.