Print  Specifics: Type of print: Steel engraving (intaglio) - Original antique print Comes from a series of prints examining various  geometrical forms and how they are applied in Architecture, Civil and Military Engineering, Religious Structures, Art, and Surveying to measure and calculate the volume, areas and quantity of building materials, earthworks, the length of lines, curves of roadways, railroads, vaults, arches etc. For example: Fig. 1-3. various types of ship's keel and associated surface area calculations, 6. surface  of an oblique cone, 7. Calculation of tree dimensions for a timber  merchant  8. calculation of the volume of a pile of barrels to be transported by a ship, 9. granite-hammer (mason's tool), 10-13. volume of various architectural moldings (profiles), BOTTOM: masonry volumes of the cathedral columns which are in essence prisms of various shapes. Year of printing: not indicated in the print, actual: 1864 Publisher: Librairie de la Societe des Ingenieurs Civils, Paris Condition: 1-2 (1. Excellent - 2. Very good - 3. Good - 4. Fair) Light signs of handling, occasional minor blemishes commensurate with the age of print. Dimensions: 13 x 18 inches (33 x 47 cm), including blank margins (borders) around the image. Paper weight: 2 (1. Thick - 2. Heavier - 3. Medium heavy - 4. Slightly heavier - 5. Thin) Reverse side: Blank Notes: Green color around the print in the photo is a contrasting background on which the print was photographed. The print detail is sharper than the photo of the print. Due to its size, the print will be mailed rolled in a sturdy 4" (10 cm) diameter tube.   Martin2001 Satisfaction Guaranteed Policy! Any print purchased from me may be returned for any (or no) reason for a full refund including all postage. Internet seller since 1998. Five-star service.