I just revisited this thread and thought to pull my volume from the shelf. It's the Doubleday & Company edition and according to the credit notes was published by arrangement with the estate of Sir Arthur. For the life of me I can't find a printing date, but I'm quite sure I bought it new in 1970. It is price marked $7.95. It's prefaced by Christopher Morley, one of the all-time great Sherlockians, which is very cool. As I took it down the book jacket, which I note has been oft previously scotchtaped, came completely in two. More repair work to do, which I shall do gladly and fondly; remembering the many pleasurable hours the book has given to me, it's the least I can do.
By the way, Morely was a cob smoker, which should please many here.