Established by Max Grumbacher in 1909 while hand making brushes at his kitchen table in New York City, the Grumbacher company went on to become an art materials empire. This high-quality knife I believe was made in Japan and from what I can tell is no longer produced. Nice and substantial, it is easy to grip and use with precision. It appears to have been used but is in excellent condition and still very sharp.
7 1/4" long x 1" wide x 3/4" deep.