Mobius + Ruppert (M+R) Brass Artists Pencil Sharpener - choose from 4 shapes! Made in Germany - finest in the world! (604 - Bullet/Grenade) : Amazon.ca: Office Products
Möbius+Ruppert Round, Double Professional Brass Sharpener
The BEST Pencil Sharpener for Pastel Pencils – Potato Art Studios
Möbius + Ruppert round double sharpener made of brass | Erasers, Sharpeners & Accessories | Writing Utensils | LUIBAN Paper and Writing instruments in Berlin
The Best Pencil Sharpeners! Pencil Sharpener Review! - YouTube
The Mobius & Ruppert "Bullet Pencil Sharpener" is probably the best pencil sharpener you can have in your drawing kit. It has probably been around since either the Crimean war 1853/56, or