B59-720 CLAPBOARD MARKING GAUGE. Nester Patent. The rare and gizmoish gauge patented by John Nester of Portland, OR, on New Year's eve of 1867, and manufactured by him. It's primary function was to score clapboards, but it included a level vial and rule and could also serve as a conventional marking gauge. In very nice condition, mahogany with brass plating. Originally from the Don Rosebrook collection. Fine 150-250