Help ID this EMPI sump

[Geoff P DVKK]

Looking for a little info on this EMPI sump. It appears to be made of Magnesium and over the years i've seen a few with the same stamped script like this but don't know the year or other info on it?
I asked Richard Roth but he hasn't seen this type befor...Any ideas? It looks to be an early crude casting with the flat top..

[speedwell]

if i remember well i've seen one in the late 90's it was at kobus stand in a swap meet , it was the day i've bought mine (lang model) i remember he said to me don't buy this one it's in magnesium and he 's porous , and the sump look the same as yours

that's all what i know 

[Zach Gomulka]

Interesting. Looks just like the two I've had, but without the globe. Even the "E" cast in to the top side of the sump is identical.

[.]

The casting appears to be the same, but this is the logo I am familiar with.
I have owned about 20 sumps with the Empi globe cast in and "upside down".
I have never seen one like Geoff's with the large Empi letters stamped in with no globe.