A 1937 first of Napoleon Hill’s 'Think and Grow Rich' – $2750 (£2085) at PBA Galleries.

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The dust jacket, repaired with archival tape at the folds, and otherwise chipped and worn, is not its greatest asset, but this early, perhaps 1937 first of Napoleon Hill’s Think and Grow Rich does bear the author’s signature on the front free endpaper.

Published in Meriden, Connecticut, for the Ralston Society, this book was billed by the Californian saleroom PBA Galleries (20/15% buyer’s premium) in a November 18 sale as a still popular work teaching “the famous Andrew Carnegie formula for money-making”.

Promising ‘The 13 Steps to Riches’ at the foot of the jacket’s worn spine, it sold for a mid-estimate $2750 (£2085).

I found only one other copy listed in auction records, and that an example that PBA offered around 10 years ago. That one made just $140.