Thanks very much! Doing some more search and found other dates, such as a patent filed for “Micrograph” in 1976 and info that it was being used for lead holders (actually mechanical pencils) since 1971 - likely via MARS-MICROGRAPH 0X 770 0X. And a patent filed by FC in 1976 for “TK-fine” as well.
2 Likes
Thanks to you. By the way, is there something like a 775 0x with a brass clutch and/or metal lead container tube? Is there a Staedtler pencil with a plastic body and 100% metal internals?
Edit: Does the MARS-MICROGRAPH 0X 770 0X have metal internals?
1 Like
Lead container tube definitely no… Maybe Micromatic but I know it’s not true 100% since a part of the mechanism is made of plastic, your best bet would be micrograph since that at least has brass clutch (drifand did disassemble his and say the 0.5 and 0.7 used a plastic one instead). I guess a 775 0X with brass clutch would be the P20X 
MARS-MICROGRAPH 0X 770 0X likely has a plastic lead container tube but brass mechanism, I think the mechanism would be brass because it belongs to the flagship “MARS” drafting line, would be good if someone did a teardown of this pencil. I tried to get in touch with the guy behind zeichnen lofter but even with google translate I couldn’t understand how. EDIT: its all brass
1 Like
7 Likes
It’s my pleasure! I hope one day you can fill the remaining gaps.
2 Likes
Forrequi, this is a terrific write-up on Staedtler. An excellent guide that I’m hoping you’ll be able to revise and append over time!
One thing I’m wondering about and hoping you might have some info, is original pricing. In particular, the 925-95 came out in the mid 1990’s. Is there a known sticker price. When it was retired in 2005 and the 925-85 came out that same year, did it resume the same price or was it lowered?
It also would be fascinating to learn about what drove Staedtler to change the design of the pencil… if there was some desire for an aesthetic change or if there was a production cost impetus to altering the design (such as the stepped nose cone being changed to a simple conical shape).
2 Likes
Hello Gary! I’m happy that this guide has been good for you, I’ve actually been compiling a list of pencils that I need to add and information that has to be changed… Any of these days when I get enough time I will do it!
PenEssay claims a price of 1200 Yen for 925 95 and a price of 1200 Yen that was later changed to 1400 for 925 85. I do not know their source for these figures, someone could try emailing them – or maybe emailing STAEDTLER.jp directly.
Many things can be behind a design change, maybe it’s because drafting pencils in general are “less desirable” than writing oriented models (you can maybe understand this as drafting x conical sleeve?) but honestly no one can know for sure. Maybe the 95 sold poorly or maybe it’s just a question about aesthetics like you said.
4 Likes