this is a large paper illustrated print which has come out of a quality publication titled engineering which is dated 1909 . this large print is titled " the peddie - calichiopulo sights for small arms and machine - guns  " this  measures 14" -- 9.3/4" and is in good condition ! this has information on the back which is relevant to the topic ! this would look great mounted and framed ! i have many more historic illustrations you can view in my ebay shop !