Thanks for that information Manor House, it now gives me a better idea of the age of the Poe book.

Here's another

Stephen King
The Shining
New English Library
3rd Impression 1986
Hardback/Dustjacket

-seemingly a publisher's proof copy with pencilled notations and corrections throughout. Some chapter titles drop onto 2 lines, for example, with pencilled instruction to centralise and fit on one line; some capitalisations & italics are marked with "ignore"; wrongly placed dedication to Joe Hill King "to be given in vol 1 only on title sheet"

Could such an edition be considered 'unique'?