On November 27, 1953, new wide transparent nylon seal was introduced (Fig.5) (Pelikan Schreibgeräte), which was stable in quality and used also for model 400 and 140. On January 20, 1954, model 100N and IBIS 130 were "officially" announced to be discontinued⁽¹⁾(Pelikan Schreibgeräte), but were continued to be produced. In the same year, so-called fir tree nibs was introduced (Fig.1). The nib had the "stylized Pelican" logo in a circle and chevron lines reaching the nib slit (as the lines resembled a stylized Christmas tree, the nib was nicknamed ”fir tree nib"). In the same year, model 1ooN with green or gray striped sleeve was made as a "prototype" model (Pelikan-collectibles) or as a "transitional" model (Werner's Info-Page Pelikan-Pens)⁽²⁾. The striped body had already been adopted in model 400 and 140, but stripes of model 100N were somewhat "fluctuating". Model 101N with tortoise brown striped sleeve was also revived (Pelikan-collectibles)⁽³⁾. With these pens being the last version⁽²⁾, model 100N was discontinued, but, fir tree nibs were inherited by model 400 and 140 as from December 1954.
 
Note;⁽¹⁾Likewise, IBIS 130 were continued to be produced for the export market (e.g. Switzerland) until at least 1956 Pelikan Schreibgeräte, Pelikan-collectibles).
⁽²⁾Today, whether these pens were regular models or not can no longer be determined (Pelikan Schreibgeräte). But, making a prototype for the model that was to be discontinued is not plausible. Christof and I assume these pens were the last variant models for model 100N.
⁽³⁾@stoen let me know that there is an inscription "PELIKAN 101N" on the top of the body. Please take a closer look at the original images.