39! May 12, 1906. … by a foot lever and raised by its molds, 36 different full- the returning follower. The size and 288 fractional blocks. four sides of the mold are released by levers, and the bodying :these time-saving features with simplicity of Its core holes may be raised from 2 to 6 inches, and block is removed…
Internet Archive · Public domain (published before 1931). Free to use for anything.