In the mid-1960s, spy thrillers were all the rage. Of the James Bond genre, The Man from U.N.C.L.E. (and The Avengers) were major players. Here are three paperback copies of the U.N.C.L.E. series -- the Copenhagen Affair, The Dagger Affair, and The Vampire Affair. All three show the two stars of the TV series on the covers -- David McCallum and Robert Vaughn.
Condition-wise they're pretty typical for that era -- pages have darkened some but two appear to be unread with spines uncreased. No names or major markings. They originally sold for 50 cents each.