STP dual oil filter mount. Any one ID this?

Nice quality black anodized with STP cast in. Has knurled rings that screw down over filter flanges drilled for safety wire. I'm curious if any HAMBER knows when these were produced and for what purpose. Filters install facing each other. OB

 

Yup thats a hose alright..

 

Acquired one of these, has 7132704 cast inside it. very nicely made, I guess for a fuel car. Does anyone recognise this and know what filters will fit ? Google has not been any help. Cheers.

 

Never seen the STP one. I have a Keith Black

 

Yes, I own one of these......mine uses the STP -25-HD filter (Andy Granatelli's baby)....here is a photo if I can load one....Frank.

 

a by product of Grannatelli's Indy race car program perhaps? The small block Dodge with Weslake heads ? I have pics of that in a old Car Craft I think.