No sooner was the challenge issued, than I received a lovely email from Jan, complete with beautiful photos of her own garden:
Jan has identified my beautiful unknown rose as 'Albertine', a stunning, large climber, bred in France in 1921. She says it is a real show-stopper, with passers-by always asking her about it. No wonder - what a beautiful archway!
Thank you so much Jan for your help. 'Albertine' will certainly be finding a place in my garden. Jan does not, as yet, have a blog, but I am sure she would have wonderful things to share with all mad-gardener bloggers if these photos of her garden are anything to go by!