|Note_en={{Dating|back}} Advertising for the [[Parker 51]] in its version for its features: the [[Aero-metric Ink System]] (called [[Foto-fill filler]]), the [[Pli-glass]] reservoir, and the new clip [[Live-metal]]. Mention also the ''[[Lustraloy]]'' cap and and ''demi-size'' version. Published also on the ''Esquire'' number dated 1949-03. | |Note_en={{Dating|back}} Advertising for the [[Parker 51]] in its version for its features: the [[Aero-metric Ink System]] (called [[Foto-fill filler]]), the [[Pli-glass]] reservoir, and the new clip [[Live-metal]]. Mention also the ''[[Lustraloy]]'' cap and and ''demi-size'' version. Published also on the ''Esquire'' number dated 1949-03. |