Hardtmuth Koh-I-Noor 1511 2mm graphite pencil. If you remember my double ended pencil, here is the more common normal looking one. This one also a 2mm graphite that unscrews to loosen the grip on the graphite and then you adjust it and screw it back to tighten. It does have a wooden body on it. The end caps came in different colors so you could set up your own system of knowing what hardness graphite is in the pencil. I have it set up for tan color cap is for hard graphite because it write light and green has the softer graphite because it writes darker.
While I love clutch pencils first and foremost, these being the “grandfather” and slower to use, have the neat factor going for them!