Pelikan 300 (black-striped)

My collection. This is actually the first Pelikan model 300 I ever bought. I didn't post about it on Fountain pen network because I long thought this 300 wasn't authentic. When the pen arrived, I saw that "300" was engraved on the cap (Fig.2-3), but there were no engravings on the barrel, including “300.” I assumed that I had bought a fountain pen that combined a model 300 cap with a model 400NN body⁽¹⁾. In hindsight, that was a far-fetched assumption, but at the time, I was convinced of it. Disappointed, I tossed the pen not into my pen tray but into a box where I kept spare fountain pen parts. That was over 10 years ago. After that, I forgot all about the pen (later, I was lucky enough to acquire a second model 300 as shown above, which I posted about on Fountain pen network). Recently, I needed a model 140 nib unit and remembered this fountain pen. I took it out of the parts box for the first time in a long while, intending to repurpose the nib unit. When I carefully examined the barrel with a magnifying glass, I found a faint engraving that read "300" (Fig.3-2) I could also barely make out part of the engraving, "GÜNTER WAGNER." Thus, I realized that, more than ten years after I bought it, this fountain pen is indeed a genuine model 300. It was simply an oversight on my part, but since the experience was memorable, I’m posting about it.
 
It is believed that the model 300 was made using parts from the models 400 and 140. However, these parts vary slightly depending on the year of production. Both model 300s shown in Fig.2-1 have fir tree nibs, suggesting that these fountain pens were manufactured in 1954 or later (Pelikan 400 (ca.1952)). The black-striped model 300 has a slimmer clip. Since the clip of the model 140 was narrowed in 1954 (Pelikan 140 (1952-1965)), it can be inferred that the green-striped model 300 on the left was produced around 1954 and the black-striped Model 300 on the right was produced later.

Note;⁽¹⁾Since the 300 was produced in limited quantities and was highly prized, it seems that in the past, some people would sometimes combine parts from the 140 and 400 series and sell them as 300s. However, with that combination, the parts would not  bear the "300" engraving, so someone knowledgeable could immediately tell whether it was genuine.
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