vintage Dietzgen Black Ruling Pen Drafting Tool Made in Germany Case

Lot Of 5 Vintage Drafting Tools, Ruling Pens, ?

vintage drafting tools wood ruling pen D.R.P. Germany

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

Vintage Antique Quill Mechanical Drafting/Drawing Ruling Pen Instrument Set

Vintage Post 5 1/" Ruling Pen Spring Blade #1060

Kern Swiss Ruling Pen 1029

Vintage K+E (KEUFFEL+ESSER) "Marathon" Mechanical Drafting Tool Pen Set