Masonry Skills. By Richard T. Kreh, Sr. Mr. Kreh is (was) an instructor of masonry and building trades at Middletown High School in Middletown, Maryland, with over 30 years of experience as a mason and teacher.
This is a hardback textbook used for training apprentice masons. Copyright date is 1982. ISBN: 0827321538. Does not have a cover, there are no markings or under linings, page corners are good. It is a very nice book with lots of good information.