William, if you study other roses of the Climbing Tea classification, then study the rose in commerce, including by J&P, as Sombreuil, you will see for yourself this is NOT a "Tea" rose. Once you have accomplished this comparison, then study roses bred from the species, R. wichuraiana, most notably, New Dawn, you will see the great resemblance, yourself. These two roses were confused in the trade many decades ago, and the confusion has been perpetuated by all who have sold "Sombreuil" ever since. When you receive material from someone who knows more than you do, seldom is the identification questioned. The "expert" IS supposed to know what he/she is talking about. Usually, the "expert" is relying upon information which has been given him by other "experts". Not to cast aspersions on "experts" in any way, as identifying anything which can vary so greatly due to many factors is never easy.

There have been several notable cases of this type of confusion occurring with older roses. Jacques Cartier and Marchessa Boccella is one well known example as is the confusion between the two old Irish Hybrid Teas, Irish Fireflame and Irish Elegance, which I was able to unravel a few years ago. More recently, the confusion between the China, Irene Watts and the floribunda, Pink Gruss an Aachen was straightened out. Another was the discovery that the old Tea rose, Francis Dubreuil and the older Hybrid Tea, Barcelona, are the same rose. Not that originally there weren't two different roses in commerce, but currently, there is only one rose in each case, being mistakenly sold under the two different names. I seriously doubt anyone did anything dishonest, resulting in one rose being sold as the other name. No one is suggesting anything dishonest has been involved. When you read the older descriptions of these early roses, you'll find they were often sufficiently vague about botanical details, or there was so little defining information included, or even enough "poetic license" taken (VERY much like the case with modern rose catalogs!), that definitive identification is virtually impossible. To read my own research concerning the Irish Fireflame/Irish Elegance correction, please see the article at this link, here on Help Me Find.

http://www.helpmefind.com/rose/l.php?i=A3407&tab=12

It's very easy for roses to be mistaken for one another. That's how the root stock most commonly used in the United States by virtually all the major rose producers, including Jackson & Perkins, Dr. Huey, became the industry standard in this country. The information uncovered suggests that cuttings of the originally used stock, Gloire des Rosomanes, or Ragged Robin, were confused with those of Dr. Huey. Both were struck and budded in the fields there in Wasco, California. It was noticed that roses budded on some of the root stock developed faster and into better plants than others. They discovered the better plants hadn't been budded on Ragged Robin, but accidentally budded on Dr. Huey. Now, just about any budded rose generated in California is on Dr. Huey's roots, and have been for over half a century. 

Accidents in identification occur all the time. The wrong rose gets shipped from nurseries; tags in receiving nurseries are mistakenly placed upon the incorrect plants; one small discrepancy in identifying a row in a mother block can lead to the incorrect budwood being collected. Often, roses are so generally similar that anyone either not familiar enough with the varieties, or careless in their collection of the requested material due to lack of interest or being rushed, can very easily pick up the wrong rose. Unidentified roses are frequently supplied to "experts" for identification. You'll see that nearly daily here and on other rose sites. When all you have is the scant information available about some of the older roses upon which to make an identification, it's easy to slip up. That's very likely what occurred regarding the Irene Watts/Pink Gruss an Aachen and Francis Dubreuil/Barcelona situations. The corrections occur through people looking at a rose and thinking, "something just isn't quite right here", as is the case with Sombreuil. I hope you have the opportunity to do some of this observation I suggested earlier of the Climbing Teas and Sombreuil. I guarantee it will cause you to question this identity.