Vintage Ruling Pen Precision Drawstring Instruments

Alvin Co Germany Ruling Pen #757 Drafting Drawing instrument tool

VTG Ink Spring Blade Pen Ruling Drafting Drawing Instrument Mechanical GERMANY

Vintage Dietzgen Ruling Pen Drafting Tool 5” Made in Germany Engineer Art Draft

Two Vintage K & E / Keuffel & Esser Ruling Pen ~ Germany Paragon 6” & 4.5”

Vintage Alvin Drafting Set Charvos USA Compass Ruling Pen K&E Cloth Blue Case

Vintage Drafting Ruling Pen Adjustable Ink Line Drawing Tool 5.5”

Vtg Drafting Ruling Pen Wood Handle Mechanical Blueprint Drawing Ink Tool Box