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No. 40 Push knob Filler
This pen is from the personal collection of Joudenali. Watch out for reviews of truly rare pens from his treasure chest!
The No. 40 push knob was made in the early 1930s. An old catalogue from that time seems to indicate that the No. 40 series was replaced by the 128.
This No. 40 is in a green colour known as "malachite". It is considered rather rare and valuable, and difficult to find such decent condition today. The body and cap are believed to be made of celluloid, but one particular advertisement from the late 1920s showing this series of pens in its lever variant asserts that "In keeping with our tradition of quality, we do not make pens made from cheap celluloid material that is flammable; our material is absolutely breakage and fireproof". Now, I don't know if this means that the material itself is not celluloid (maybe casein) or if the advertisement simply implied that the quality of celluloid used by Montblanc was superior.
The ball clip and nib on this pen are period correct.
Measuring 133mm capped, this was the largest pen of the series and it had a large size 8 nib.
The push knob filling system on this pen was known as Stoßfüller. It was advertised as being so convenient to use that it needed only a single hand to fill the pen. The No. 40 push knob was advertised side by side with its safety filler version in a 1929 catalogue. The pen number denoted the price of the pen, so the No. 40 was priced at 40 RM at the time - same for the push knob and safety filler.
For bibliography, see Resources page -->link
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