Solution of Triangles Part 1 by Erik Oberg Booklet Book 1912 PB 2nd Edition

Technical Descriptive Geometry, 2nd Edition,

Practical Descriptive Geometry Smith 1936 Mathematics Textbook McGraw-Hill

Antique "CQ" by Arthur Train Hardcover 1912 1st Edition vintage

Engineering Descriptive Geometry by Charles Rowe & James McFarland 2nd Edition

Descriptive Geometry by Kirchner Eggers 1st Edition Second Printing Hardcover

The essentials of descriptive geometry, by F. G Higbee 1917 2nd edition.

The Scramble for Africa 1876-1912 Thomas Pakenham 1st US Edition 2nd Print 1991