Not sure which company's valve adjuster this is, but it came with a set of VW 1.1 rockers and Berg rocker shafts I bought at Sacramento last year. The same guy had an EMPI or other cheap aftermarket shifter with a Berg handle on it amongst his items for sale...
They appear to be a swivel foot with a large foot end but not ball-and-socket nor is it a cup style. They are not cross-drilled with oiling holes, but do have the allen head end for the jamb nuts. I need to know if I need to back cut my CB Performance 1.25 (Super Stock) rockers for them if they are indeed 911 style adjusters. I can't seem to find any adjusters on the Berg, Scat, EMPI or CB web sites that match these.