Dafydd,
Had a look through my collection. Seems like Russian Patrol was written by Rubenstein, not my grandfather. I've got a program of a performance of his pieces and others'. Russian Patrol has Rubenstein next to it as the composer. Being top of the concert agenda I guess means it must have been an impressive piece. I have some scans of what I have, but they're too large to attach in this forum.
Regards,
David
dbouckley@gmail.com