This is a nice wood shipping crate for I. C. C. - 14 Hercules Powder - High Explosives Dangerous.  The wood box measures 8 1/4" in height by 13 1/4" in length by 9 1/2" across at the opening.  One end is also marked "Contractors FFF Tamptite".  The wood shows some wear with one end having a chip to the corner.  The edges are a finely dovetailed type construction.  A very nice 25 lb Hercules Box.