This is a very nice clean group of 3 different open ended wrenches marked "H" inside a diamond logo, or the Herbrand Logo on one side of each. They are also marked with their respective model number. The smallest "3" and is 45/64", the middle size is 1.15" actual opening, marked "5/8" and "606", the biggest is marked "608" actual opening is 1.275". The largest is 10" long overall. Herbrand manufactured a large selection of hammers, wrenches, pliers, auto body tools, and more, from 1882 to 1948. This is a hard to find example lot of wrenches, in clean condition, little wear, no damage, no rust.