Just found this,

[HeelSpur]

digging thru a box of old shaper bits. Still has oil in it, forgot to measure it though and I'm eating lunch. Its about 1 3/4" maybe 2". I'm way off on my estimate, its 3 3/16" from bottom to tip.





aint it cute.

[rusty]

Neat pocket oil can :)

The first patent (537,888) is for the cap, so it doesn't leak oil into your pocket.

The second is a design patent (D25946) , includes the ribbed sides (The first one doesn't show them, perhaps it was slippery when covered with the oil that wasn't supposed to leak out of the cap....

Assigned to the Waterbury Manufacturing company , of waterbury, CT

Frederick Chase patented several other oil cans as wll....

[OilyRascal]

I really like that pocket oiler.  I could see myself using one regularly.

[oldtools]

Very nice oiler, is that a toothpick in the cap? 
don't see threads on the nozzle, so the cap threads into the nozzle body?
assume the nozzle body threads on to the container for filling?

[Branson]

Very nice oiler, is that a toothpick in the cap? 
don't see threads on the nozzle, so the cap threads into the nozzle body?
assume the nozzle body threads on to the container for filling?

Not a tooth pick I shouldn't think, but an applicator for accurately placing a small amount of oil in a needful place.  Surface tension will hold about one drop on the end of the needle. 

I'm wondering about the threading, too.   Where does it go?

[HeelSpur]

What looks like toothpick is a brass piece that is fixed into the cap,
and the threads are female inside of the coned part.
It takes several tries to get that brass needle back in that tiny hole too.

[oldtools]

Kool Tool!!! and very usable...