|Note_en=Back. Instruction for ballpoints and informations on nib sizes, on [[Super Quink]] ink, and on refills and service. {{OnBack|File:1970-10-Parker51-75-EtAl-Istro-Recto.jpg}} | |Note_en=Back. Instruction for ballpoints and informations on nib sizes, on [[Super Quink]] ink, and on refills and service. {{OnBack|File:1970-10-Parker51-75-EtAl-Istro-Recto.jpg}} |