This base could be very very pretty. The handpainted roses on the outside definitely have some light fading but are still obvious and visible.  Needs a burner and wick. In vintage worn shape as pictured. The base is 6 7/8" high and 5 1/2" wide, and has no visible markings.  The chimney is 6 1/4" in height, may have been mated to the base, has a crack on the base.

I have seen this lamp redone on eBay and it looks beautiful. This one could look just as nice with some attention.  As is/as shown/as described/as pictured.