I just planted this as a bare root in April--looks to me like the right plant but the ARS article didn't print a photo of the real Nicole, just the imposters!
KORicole should have 35 petals and be a 3 foot shorty. If your rose has 20 petals, shows stamens and heads to 6 feet and beyond, you may have Hannah Gordon.
To find images of KORicole, use google, search for KORicole and check websites outside the USA (since Kordes never authorized sale here). I posted several links in the Roses Forum to non-USA shots of KORicole in Canada, South Africa and Germany.
Here is a link that might be useful: If you have Nicole - Roses Forum