Copies of the Constable first edition in original dust jacket are extremely rare
Copies of the Macmillan first edition in original dust jacket are very rare; I have never seen one
I found this image on the Internet
The facsimile dust jacket shown below was made from my copy's original dust jacket
The Constable first edition comes in 2 variant bindings. I believe the purple binding is the first issue, and preferred.
The facsimile dust jacket shown below was made from my copy's original dust jacket
The facsimile dust jacket shown below was made from my copy's original dust jacket