Set of four books, parts 1, 2, 3 and 4 of the course. Preserved in each book is the certificate of completion (certified exam grade form, from the school) of the previous owner (circa 1921). He passed the course. All are intact with some general wear. Typed name of previous owner attached to endpapers of each book. Some beginning binding weakness. Red hardcovers with some wear and age toning, edge bumps, etc. All together a nicely preserved complete set of this coursework.