MITSUBISHI uni M4-1052, a drafting mechanical pencil. I purchased this for my collection some time ago. I've only used it for a test write and have kept it stored since. Please refrain from purchasing if you are sensitive to items stored by a non-professional. No price reduction. - Model Name: Mx-1052 - Color: Black - Features: Knurled grip - Lead thickness: 0.4mm Thank you for viewing.