I counted 41 petals and petaloid. Each petal has a white tip at the base, and a few have a tiny white fleck.

I've been reviewing the inconsistencies of the rose in commerce in the USA as 'Thor'. It's provenance isn't solid. The source plant was an unlabeled rose in the San Jose Heritage Rose Garden. That garden was planted within a relatively short period of time in the mid-1990's, with roses sent from all over the USA and Europe. Labels, being labels, disappeared on occasion, and this was one. The blooms attracted attention, and in the early 2000's, someone came up with the attribution 'Thor', and it has stuck for this long. But there are problems. First, there is nothing of <i>Rosa setigera</i> in the plant. Second, it doesn't really climb. It leans. Third, it reblooms. The color and form of the blooms is completely unique, and that color is what led me to a rose with identical blooms: Louis Lens' 'Epoca.' At this point, we do not know whether "Thor" is 'Epoca' or "Epoca" is 'Thor' or if both are wrong, but we are trying to trace the provenance of 'Epoca' that is now being sold. Take a look at 'Thor' in commerce in the USA:
http://www.helpmefind.com/rose/l.php?l=21.33019
Then take a look at 'Epoca' at the Louis Lens Roses, which one can expect to be selling the right rose:
http://www.lens-roses.be/index.dhtml

I believe that Thor in commerce in the USA is 'Epoca'.