This screw tip Philadelphia Style powder horn was made by Chris Helsel, it has a maple plug and stopper. It measures 13" tip to tip,16-3/4" on the outside of the curve with a diameter of 3" at the plug. This is a one-of-a-kind horn and the horn pictured will be the one you receive. The maker Chris Helsel was just advanced to journeyman by the Honorable Company of Horners and has won multiple awards on his horns the Gunmakers Fair at Kempton as well as other events.