Blueprint: Design of Hopper Feeder for Soft Coal Handling

Easton PA: Alpha Portland Cement Company, 1920. Blueprint. Very Good. These blueprints were part of a drive by the Alpha Cement Co. to promote the use of cement and concrete in architecture and building. Most are for rural and farm construction, and seem to have been mailed by subscription or for free to architects and designers. Condition is Very Good, with slight wear and creasing, primarily to the edges. Most have a red ink stamp or typewritten notation on the margin or reverse indicating the date it was received in the architect's office. Size of paper is approximately 11 3/4 by 17 3/4 inches. Please see images, and ask for more if needed. The images are scans, not photographs, and some of the margins did not fit in the image so I can take a picture if needed. If you follow the images into the Old Book Art Gallery, you will find access to much larger images for a look at the details. This link will take you right to the gallery folder where these (and previously sold images) may be viewed: http://tinyurl.com/AlphaCement