He wrote many books on Coptology .
He was also the librarian of the ' Societe d'Archeologie Copte ' , which is adjacent to ' El - botrossiah ' ( St Peter 's ) Coptic Orthodox Church at 222 Ramses Street , Cairo .
librarian wrote many books on Coptology .
He was also the librarian of the ' Societe d'Archeologie Copte ' , which is adjacent to ' El - botrossiah ' ( St Peter 's ) Coptic Orthodox Church at 222 Ramses Street , Cairo .