Comes with Certificate of authenticity The Frost Cutlery 35th Anniversary 35-TRB Complete 10 Set Tennessee River Birchbone is a limited edition pocketknife set featuring stainless steel blades and Tennessee River Birch handles. This ambidextrous manual knife set commemorates the 35th anniversary of the brand and includes 10 Knifes in each set. The brown color and original design make it a desirable collectible item for knife enthusiasts.