Hello everyone, I am new to this site and this is my first post.

I recently did some trading and ended up with this "lubester". I am trying to identify it but have been unsuccessful. I can't seem to find any info on the web that looks like the crank/handle/delivery top like mine. Mine has a small round brass thing at top that allows you to choose amount of liquid to dispense. There is also a guage type handle that allows you to choose the large volume to dispense. There is a small brass tag affixed to the top front that says "POCO 5335". It does have the original dipstick with it as well that shows markings of 1.0 to 6.5. I did not measure the tank but it seems to be roughly 24" square and maybe 36" tall.
Don't let the green paint lead mislead you into the conclusion that it was Kerosene. When I tip it over the underside appears to be some sort of darker blue. I don't see any other casting marks or logos but the paint might be hiding them.
Please see the attachments for some of the details of my description
Any information on Year, model, brand, etc would be very helpful.

oil 1.jpg oil 2.jpg oil 3.jpg oil 4'.jpg