The first date codes, found for example on the Vacumatics, consists of two digits, the first one denoting the quarter of production, the second denoting the production year.
In mid 1934 Parker began marking most pens and pencils with a date code, both the barrel and the nibs were marked, but lacking a date code doesn't necessarily mean that the pen was made pre-1935, since many imprints have been worn off with use.
In 2000 the code again underwent a small change when the quarter switched sides with the year and there was a dot between them "Q.
III" There are however inconsistencies, such as missing dots and quarter codes appearing on the wrong side of the year code.
Designed for people who hold the pen with very little slant 14k 71 72 Extra Broad Stub-Parkers widest stub point.
Produces heavy lines on horizontal stroke, thin lines on vertical stroke 14k 70 Medium Stub-a heavier flat point for shaded writing and printing.
So far the earliest date coded pens found have had the code NL for 1979, and all of these pens were made in the US.
Worse than average condition, but still a fully functional pen. All opinions, views, and thoughts expressed herein are expressly the authors, and in no way reflect the opinions, views, or thoughts of the Parker Pen Company®/Sanford Ecriture.