We have a Metal Grease gun / Oil can hand held tool Vintage item.  It measures about 6 1/4" in h from the top of the gun to the base .    It is marked  Lubrigun / Lincoln St Louis.  The can alone is about 5" in h x about 1 5/8" across the bottom center.  It has some tarnish and light wear showing.

Metal Grease gun Lubrigun hand held tool Vintage