This is an antique oil visgage tester made by Louis Eitzen and comes in its original wood case with a glass top.This one was used to test the viscosity of oil in locomotives on the Union Pacific Railroad.
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Welcome!
This is an antique oil visgage tester made by Louis Eitzen and comes in its original wood case with a glass top.This one was used to test the viscosity of oil in locomotives on the Union Pacific Railroad.