Took a group shot with Pentel Graph and the other Graph-like designs:
• Pentel Graph Pencil
• Colleen FK40
• Sakura Create Sharp TS-1005? ← extrapolating from the known TS-805
• Pentel PMG
• Junior hard3
• Pentel Graph Pencil II PG4
• Sakura Create Sharp TS-805
I believe it is called Sakura Sharp XPS-405 — found one in Milan by chance, that arrow in the back metal part and the plastic finish seem impossible to confuse with those from other pencils — and mine came with a clearing pin and a box sporting that name.
Koh-I-noor 5626 somehow fits in the range, too. Maybe it’s even the origin?
Fantastic! Do you still have the box for a photo?
Sure! I rushed to the stash of boxes to shoot these three (the name pops out better in the last picture).
Hope it helps! 
I still haven’t picked up a Junior hard3. You’ve reminded me of that desire. Thanks.
This is beautiful! Thank you.
You’re right, there’s a possibility Pentel was inspired by the 5626. Do you know when the 5626 came out? Pre-1965?
Unfortunately I have no idea. I see a chance, that it appeared quite early because of the 0.9mm lead.
But I have a photo
Ah! From when KIN was still split…
