In a large bowl, cream the butter and 1/2 cup sugar until light and fluffy. Beat in vanilla. Combine the flour, pecans and salt; gradually add to the creamed mixture and mix well. Shape into two 8-in. rolls; wrap each in plastic wrap. Refrigerate for 2 hours or until firm.
Unwrap and cut into 1/4-in. slices. Place 1-1/2 in. apart on ungreased baking sheets. Bake at 375° for 8-10 minutes or until edges are lightly browned.
Meanwhile, combine the cinnamon and remaining sugar. Roll warm cookies in cinnamon-sugar. Cool on wire racks.
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