This is a STAEDTLER drafting set. It comes with the 15th revised edition of "Standard Drafting Methods Based on JIS" published by Ohmsha. I purchased it for a required course in the mechanical engineering department of a certain former imperial university. The list price was probably over 20,000 yen. I used it in class, so the book has pencil markings and sticky notes as shown in the photos. Also, I have lost the 30° triangle ruler. I used everything, but not very often, so I think it's in relatively good condition. The hard case it came in is also included. - Brand: STAEDTLER - Item Type: Drafting Tools - Accessories: Compass, ruler, drafting tape, brush - Design: Transparent plastic drafting templates - Uses: Drafting, design, sketching - Size: Standard drafting tool size