MonoMonday week #5 - #1

Today for the first time saw the challenge of Paladin to post every Monday a MonoMonday photo.
A picture in black and white. Not because the Monday is a sad day or because black and white photography is sad or colorless, but just to mention that black and white photography is still alive.
A good idea!
So today my first MonoMonday picture. (Week #5 of the challenge and mine #1)

Here a jug or oil spray that my father in law used some 55 years ago on the coal mine . He is still with me in the garage with oil to occasionally lubricate the cable of the electric garage door.