This antique Visage Viscosity Comparator Gauge is a rare find. It comes in its original wooden box and was made by Louis C. Eitzen, a renowned maker in his time. 
The gauge was manufactured before 1930, making it a unique piece of engineering and science history. 
The item has been well-preserved over the years but pictures will show wear, cracks in wood and glass pipe. (see pics)
It is a great addition to any antique collection or a perfect gift for someone interested in the history of engineering and science.