Rare Ephrata Cloister imprint Grundlicher Unterricht Von Den Metallen, 1763, by Alvaro Alonso Barba, Ephrata: J. Georg Zeisiger, two octavo volumes in one, the landmark first book on mining and geology published in North America. Barba was a Spanish priest in Potosi at the height of the silver mining industry, and he first published his treatise in 1640. The book is all original with the original binding, which is intact. Everything I've found about the book comes from the following websites: https://antiquesandauctionnews.net/the-kindig-sale/ & https://www.bidsquare.com/online-auctions/pook/rare-ephrata-cloister-imprint-5746179 I amazingly won the book in a local online auction of antique/old books that I paid only $8 for.

7.5"x5"x1.5"