Parker 51 Custom set Argentina, c. 1965, sought after forest green and gold filled caps, converging lines pattern, fountain pen with extrafine gold nib, breather hole on the barrel end, the ball pen is cap actuated and has metallic screw in the barrel. The pen may have been inked for testing, but both instruments are in mint condition,in original presentation box. Parker 51 ballpens are very scarce. #1784 $USD 200

Parker 51 Custom Argentina, c. 1960, trio set of fountain pen, mechanical pencil and ballpen in executive black with gold filled caps, converging lines pattern, fountain pen with fine gold nib, breather hole on the barrel end, the mechanical pencil uses 0,9 mm and is twist actuated, the ball pen is cap actuated. Fountain pen has been inked but has no signs of use, as the pencil and ballpen. Parker 51 mechanical pencils and ballpens are very scarce. #2587 $USD trio set 190, fountain pen only $USD 95

Parker 51 Custom, Argentina, c. 1958, teal blue aerometric fountain pen, gold filled cap, medium gold nib, breather hole on the barrel end, cap free of dings, brassing and personalisations. Near mint, chalk mark on barrel indicating nib point size #2605 sold

Parker 51/ 61 Classic, Argentina, c. 1973, transition 51 / 61, it is a Parker 51 fountain pen made of Lucite Parker 61´s dark gray, gold filled cap with converging lines pattern, black jewel, octanium extrafine nib, aerometric filling. Near mint. Most probably the very last Parker 51 examples produced in Argentina, with the one piece metal cover of the ink reservoir, the same Lucite gray color used for Parker 61 and black color jewel of the 61 ones too. See the pic showing on the top this pen and at the bottom the standard color of Parker 51s. Extremely scarce, excellent condition #3002 $USD 95

Parker 51 Custom set Argentina, c. 1958, grey with gold filled caps, converging lines pattern, fountain pen with fine gold nib, breather hole on the barrel end, the ball pen is cap actuated. Both in mint condition, uninked, boxed. Parker 51 ballpens are very scarce. #2530 $USD 190

Parker 51 Custom, Argentina, c. 1965, dark grape, gold filled cap with converging lines pattern, aerometric filling, pearlescent jewel, gold fine nib, breather hole on the barrel end. Near mint , ink sac completely trasluscent #2528 $USD 90

Parker 51 Custom fountain pen, USA, c. 1948, executive black aerometric, 12 Kt gold filled cap, convergent lines pattern, unique for years 1948-1949 chrome filler engraved “… to fill press ribbed bar firmly 6 times…”, fine gold nib. Free of brassing, dings or initials, excellent #863 $USD 90

Parker 51 (prototype?) DJ fountain pen, Argentina, 1965. Gold filled cap, double black jewels, 14 Kt solid gold nib, fine point, aerometric filling.  Excellent to near mint in original box. #2533 $USD 100

Parker 51 Classic, Argentina, c. 1960, dark grape aerometric fountain pen, frosted lustraloy cap, pearlescent jewel, gold fine nib, breather hole on the barrel end. Excellent #2707 $USD 75

Parker 51 Classic, Argentina, c. 1960, grey aerometric fountain pen, frosted lustraloy cap, medium octanium nib, breather hole on the barrel end. Excellent #693 $USD 60.