PAN G381 from 1960 Cover Artist Stephen Boldero Printed by Richard Clay and Company Ltd., Bungay, Suffolk
A letter included in the book. I think it says "Dear Mr. Snow, So sorry - these are only signed, no nice messages! However, you have at least something rare: I never sign paperbacks but to complete your set I have signed yours. My very best wishes, Yours sincerely R. Hammond Innes"
Also issued by PAN Books as 409