I have a heavy, 2 sided adjustable wrench that opens & closes by turning the 8 sided handle. As the handle turns, the worm drive opens/closes the 2 sided head which is divided by a flat iron bar attached to the worm drive at the bottom & the wrench head at the top. The 2 sides of the head are the same in size, shape, and design. Both are flat, have no teeth or other gripping surface. Each side is almost 1 1/2 " in length.
On one side of the head is printed "Norddeutscher Lloyd' (North German Lloyd). On the flat iron bar is a logo consisting of the letter "S" which ends at the bottom swirl in the shape of a dolphin. Below that is printed "Ganz Geschmiedet."
The wrench is apparently intended for marine use & seems specialized to a particular task or type of machinery.
Does anyone know anything about the wrench, the logo or the name?