In a mixing bowl, cream the butter and brown sugar. Beat in eggs and vanilla.

Combine flour, baking soda and salt; gradually add to the creamed mixture. Stir in 1 1/4 C. walnuts.

Finely chop the remaining nuts.

Shape dough into two 15 inch logs. Roll logs in chopped nuts, pressing gently.

Wrap each in plastic wrap. Refrigerate for 2 hours or until firm.

Unwrap and cut into 1/4 inch slices. Place 2 inches apart on a greased baking sheet.

Bake at 300º for 12 minutes