The Grafton duck call was take off the Olts Old Style D-2 duck call. The calls tonal keyway hard rubber plug is made out of the same materal as the Olts were. This type of call has been around for 100 plus years and has been used by many duck hunters. This call can be modified many ways to suit the hunters need of the way they blow the call. Have a piece of hunting heritage on your hunting lanyard this season.
