Hi Craig,
I dont know how representative the top rim will be -- this used to be a lamp base (with the wire comming from the top copper surround so it is now an intact vase-wiring was 1940-1950s that why I know its that old -- bottom is cut, no pointil but corroso over the bottom as well.
PS I have another one in blue but I cant upload here over 125KB and dont know how to downsize pics!! *stress*