I think I might have identified this. I found one of my old maps that showed Tinseltown and Sheer Elegance growing close together in this spot. Tinseltown was supposed to be pale pink and white, but Sheer Elegance is orange-pink. I can't find Sheer Elegance anywhere else in my garden, so this must be it. I guess I lost Tinseltown completely and Sheer Elegance just took over the space.
http://www.helpmefind.com/rose...
HMF says Sheer Elegance is only 42" tall, and mine's 7-8' tall, but this one's in the shade next to Bill Warriner, which is supposed to be 3' tall, according to HMF, and is at least 5' tall in my garden. Besides, there's a climbing sport of Sheer Elegance, so maybe that's what I have here.