This little oiler is quite a piece of work. If you loosen the cap a bit, you can pull out its 2mm diameter brass nozzle a little over three inches, like so.
The nozzle has an exquisite little machined brass cap that screws off.
Necchi was an Italian sewing machine manufacturer. There's no website, so I can only take it that the firm is no longer with us. The odd thing is that there's not even a Wikipedia entry about the firm.
From what little I did find via Google, Necchi was once a major player in the sewing machine field. There are three good advertising illustrations here. (The second one is awesome -- we're talkin' sewing machine porn here.)
Anyway, this item can go up on the shelf where I keep my other small oilers.
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