What the heck is this thing?

its a oiler thats missing the nipple and the pan i think or very similar in shape to ones i've had over the years

a early no leak type of which there where many

What Jack said.

My thought was a charger for priming the pan also.

If you fill it with powder the springy dingy won't be able to compress.

Thank you Jack,
I'm going to put some oil in it and see how it works. The end of the pointy part, is closed and seems to fit snugly in the end cap, when under spring pressure. When I push it in, the taper creates a gap, but I won't know, till I try it with oil.
Maybe there is a rubber gasket missing between the end cap and the pointy thing. That should stop the oil till pressure is applied on the pointy thing.

I'll take this off line, as it's not really Black Powder stuff. Thanks guys for your input.

your missinga bit for that model the part that goes up the spout and gets pressed in tio let oil out without that oil will just flow

heck should have read this before responding to your msg

you got it and how its supposed to work correctly too!! too thick and the oil floods out too slim and you get none

excellent