Rare Rotring 600 mechanical pencil, old model, discontinued, out of production, rotring

This is an older model with internal components that differ from the current version. While older models without a logo are often seen, this particular older model is quite rare.

How about it, collectors?

The grip shows signs of use.

hi uni 2050 3050 3051 5050 Pentel Mechanica Hi-Mechanica Holder pg1804 pg2003 pg1505 qx pilot Pilot Discontinued pg15 Ballpoint Pen Sterling Silver Lamy Staedtler Uchida Uchida Graph 1000 pentel pmg Pilot pilot 0.2 0.3 0.4 0.5 0.9 Wood shaft staedtler Nohara Kogei s20 Variable Drawing Sharp Sharp Pen Studio Wedge Kaede瘤杢 Limited Edition Rare Color Nohara Kogei Karin瘤杢 Karin紅白 Black persimmon Peacock wood Black persimmon peacock grain Marblewood Hawaiian Koa Staedtler Pentel Smash lamy Zelkova Fixed nozzle Blue Black Gunmetal Pencil Wedge Special Karin瘤杢 Rare Valuable Item Lamy 2000 Uni Jetstream Mechanical Pencil Sharp Pencil Set Rotring Studio Wedge Craft A Pentel MONO HBK Handmade Studio Sharbo x Zelkova Core Case Fountain Pen Rotring Wood Shaft Wood Shaft Mechanical Pencil Lupo Pen Case Pure Malt Muji Sharbo Zebra Pentel Cav Limited Bulk Sale Studio Wedge Sharp Pencil Kaede瘤杢 Limited Edition Rare Color Nohara Kogei Karin瘤杢 Karin紅白 Black persimmon Peacock wood Black persimmon peacock grain Marblewood Hawaiian Koa Staedtler Pentel Smash Loft Limited Okayama Denim lamy Zelkova Fixed nozzle Blue Black Gunmetal Pencil Wedge Special Karin瘤杢 Rare Valuable Item Lamy 2000