44 leaves, 14 x 8.5 inches. Mimeograph, recto-only, including many pages of diagrams and worksheets completed in pencil by an unnamed student. Several small scraps with notes interspersed. Soil and discoloration/waviness along upper edge; staining to the last 2 leaves. Good. R. A. Christian, Instructor. N.C.R. Owl Classes were offered to employees of the National Cash Register Company. A course in blue print reading offered to employees of the National Cash Register Company, with specific reference to their products, measurements, etc. The first page outlines a course in 4 parts, with 20 total lessons and a final part with drawings. The content of these lessons appears complete and in order, many paginated and with "Question" sheets--the main content of lessons 7-9.