Good+ Faux leather bound Loose leaf 3 ring notebook. VOLUME 2 ONLY! Includes sections 17-34. Main contents are: 1) Sources 2) Mining-Alluvial 3) Color of Diamonds 4) Local Characteristics/Classification & Grading 5) Methods of Distribution 6) Marketing 7 )Industrial Diamond & Carborundum 8) Theory Of Light 9) Angles + Brilliancy 10) Diamond Cutting 11) Sources of Color/matching/Grades 12) Imperfections 13) Grading Fashioned Diamonds. There are 7 pages with tipped in Black/white glossy photos. Pages appear typed and are filled with diagrams and illustrations. 'Gem and Gemology' Fall of 1952 issue is LAID in as well. Covers have light scuffing and soil. Pages all appear clean with light age toning.  NO DATE given to publication that i can find but appears to have the aging of circa 1950's or before. A unique and SCARCE title from the founder of the Gemological Institute. Unpaginated. VOLUME 2 ONLY. SOLID.