Up for your consideration we are offering this scarce vintage mining reference work.  Entitled, Drilling and Blasting in some American Metal Mines  By Theodore Marvin  Hercules Powder Co 1928  1st Edition  Book is softbound in baby blue covers.  197 glossy pages of text with a number of graphs and charts.  Book in very good condition with minor spine and exterior wear  Some period pen and pencil notes on front cover.  Book small 4to 6" x 9" Would make a fine addition to your library or collection!  Please contact me with any questions you may have.  Buyer only pays actual shipping cost with no handling charges.