Old-Fashioned Coconut Pie

1 (9 1/2-inch) pie shell, unbaked
1 1/2 cups granulated sugar
2 eggs
1/2 teaspoon salt
1/2 cup margarine, softened
1/4 cup flour
1/2 cup milk
1 1/2 cups grated fresh coconut, divided

Prepare unbaked pie shell.

Beat together sugar, eggs and salt until lemon-colored. Add margarine and flour and blend well. Beat in milk; fold in 1 cup coconut. Pour filling into pie shell. Top with remaining coconut and bake at 325 degrees F for 1 hour.