Rare! HALL & KNAPP No. 11 1/2 Rosewood Level
This is the only level by Hall & Knapp I’ve seen marked with this model number which is clearly stamped in one end. Marker mark is very light but is clearly identifiable. Hall & Knapp were in business from 1853 to 1857 when they merged with A. Stanley & Co. to form the Stanley Rule & Level Co.
L: 20 1/4″.