III" There are however inconsistencies, such as missing dots and quarter codes appearing on the wrong side of the year code.
Year Q1 Q2 Q3 Q4 --------------------------------- 1979 - -- -- NL NI 1981 - UE UC UL UI 1982 - AE AC AL AI 1983 - LE LC LL LI 1984 - IE IC IL II 1985 - TE TC TL TI 1986 - YE YC YL YI 1987 - PE PC PL PI 1988 - IIIE IIE IE E (change) 1989 - IIIN IIN IN N 1990 - IIIQ IIQ IQ Q 1991 - IIIU IIU IU U 1992 - IIIA IIA IA A 1993 - IIIL IIL IL L 1994 - IIII III II I 1995 - IIIT IIT IT T 1996 - IIIY IIY IY Y 1997 - IIIP IIP IP P 1998 - IIIE IIE IE E 1999 - IIIN IIN IN N 2000 - Q.
Since production was overlapping examples exist with either the imprint 28 or .8. Also, since this coding system extended over a decade, a pen marked 38 could be produced the third quarter either in 1938 or 1948.
In 1950 a new system for the date coding was introduced where the two digits only indicated the year, not the quarter hence "50" means made in 1950, this system was used in the US until 1955 and in Canada a few years longer..
This is a standard for shortening the description of pens, either for personal use or when offering pens for sale.
The quarter marker changed in 1988 from E, C, L, I to III, II, I or none (last quarter) according to the below table.
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.
And it may have been the magazine's undoing, as it was soon eclipsed by more explicit publications, like Larry Flynt's Hustler magazine.
Goldstein soon found other outlets, and in 1974 launched a sex-oriented cable porn show, "Midnight Blue," which ran for nearly 30 years.