Brand: Blaisdell Pencil Co.
Made in: USA
Extra thick, dark lead........once marketed to bowlers, but of course can be used for all your darkest marking needs.
Founded in 1893, Blaisdell Pencil Co. was based in Philadelphia, Pennsylvania and had a short stint in England, too. Founder Frederick Blaisdell was granted a U.S. patent in 1895 for the shelf-sharpening paper-pencil. Until about 1946, Blaisdell was the sole manufacturer of a pencil with a string sharpening feature. The company became a subsidiary of Eagle Pencil Company around the 1930s, and eventually merged with Berol.