Precision aluminum tool set with various attachments. - Model: DW-500 - Part Number: 706-2118 UCHIDA (Uchida) KD Drafting Instrument Beam Compass DW-500 The price at the time was around 30,000 yen. Currently, it seems to be sold for around 25,000 yen. By connecting the beams, a large circle with a maximum radius of 960mm can be drawn. • Length: 500mm x 2 • Suitable usage radius: 40-960mm • 2mm pencil lead, crow quill tip, drafting pen attachment, scribing needle x 2, PS attachment 0.5mm, genuine center Note: A slit has been added to the beam for easy opening of the lid. Condition: The box shows signs of aging, but it is new. It has been stored by a non-professional. I received this as part of a decluttering effort, so I do not know the specifications. Please make your judgment based on the photos. ^_^