The Stevens Mechanical Catechism Antique 1899 Book is a valuable collectible for engineering, Alternative energy or just interested in steam engines or even electric motors and more. Written by H.G. Stevens, this hardcover book contains detailed diagrams and tables related to engineering principles. Published by Laird & Lee in North America, this original book serves as a unique resource for those interested in the history and practice of Mechanical engineering. This antique book offers a glimpse into the past for those passionate about the field. This book is in great condition and is very interesting. Please look close and ask before you purchase or make an offer. Please check out my other items for sale and feel free to make a reasonable offer for any of my items. Thanks for looking and have a great day.