Also, if this helps, that symbol someone mentioned earlier says on it "Haake Gebruder Berlin", so I googled that and the first site contained this in it:
Rheological Measurements
A viscometer (Gebruder Haake, Model RV2, Berlin, Germany) with a rotating inner cylinder and a stationary outer cylinder (Model NV ST, Gebruder Haake, Berlin, Germany) was used for the viscosity measurements.
Does this mean it's a viscometer? Sorry for my ignorance.