It's a Pierre de St. Cyr, and dates back to 1838. A Bourbon bred by Plantier, it's deliciously fragrant and is said to grow only 3-5 feet high, although roses in New Orleans can often reach heights unheard of in other places (which is why it's still in a pot, while I learn its habits). I snapped these pictures with my phone about a month ago, the first time it bloomed for me; it's now doubled in size and is covered with blossoms, but it's pouring outside today, so the old photos will have to do.
Of course, since I bought a rose for its name, I couldn't really complain when Steve bought a White Pearl in Red Dragon's Mouth, simply because he was so taken with the name. Which just goes to show that roses, like books, can sell on the bases of their names/titles alone.