Looking for info on the Castell XF 9767

I found this in my desk at work. Not quite sure where it came from, but a few cursory google searches and I keep seeing “vintage” - so I was hoping someone could tell me a little more about this one, specifically when it was sold.


Can anyone help me date these Castell XF pencils?
Left to right:

  • 9763 /5/7/9
  • 9783 /5/7/9
  • 9795 /7 Spring Tip
  • XF7

*also - if anyone has a 9793 and/or a 9799 for sale, please DM me.

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Journal of the American Institute of Architects, August 1981 ([Journal of the American Institute of Architects, August 1981 : Free Download, Borrow, and Streaming : Internet Archive]) gives us the following images:

Nice breakdown of the system.


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Thank You @2mm_Collector !

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Oh boy! A worthy title to trawl through! I spent weeks going thru the entire catalog of Pencil Points / Progressive Architecture. This will be fun!!

Here’s the current link that’s open to the public:

There will be spells of no ads, no relevant ads etc. After all, most of the time advertisers are equipment suppliers etc.

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