Could it be...
Unknown Female 295319-C?
http://www.iafd.com/person.rme/perfi...295319%2dc.htm
She's the only other woman credited with Jolanda H./Unknown Female 268404-B on IAFD.
IAFD also have her appearing with RR.
They also have her credited alongside Philippe Soine in the same film (Sex-News (2002)), and PS may be the on the left in the Silwa threesome set...