This is a stunning rose in colour and form, I rather wish it was available commercially or lesser still know its lineage!

This does appear to be a x reversa type hybrid spinosissima - suckers, arching, flower and height. As for hips the jury is out but would help greatly to a more definitive ID of parentage.

I presume that it produces the distinct maroon/black hips?

Re: Book on 'Scots Roses, Rosa spinosissima and other Pimpinellifolias'.by Peter Boyd, due to be published by the Royal Botanic Garden Edinburgh and the Royal Horticultural Society.
HAS THIS BOOK BEEN PUBLISHED?
I have hunted high and low for it, not even the Royal Botanic Garden Edinburgh has replied to my question.