This is a very heavy, 9 pounds 8 ounces, vintage stone mason hammer.  It has a logo marking on it on two sides.  The bottom side is the most legible and it looks like Lake Maupus S______.  I cannot determine what it says.  The dimensions across are 81/2" x 2".  It has sharp pointed edges on both ends.  The handle is 14 1/2".  I would call it very good condition.  Buyer to pay s/h calculated in USA.  Email with questions.