There are now images and discussions of the dust-wrappers / cover designs of all Greenwood’s published fiction and non-fiction works on the dust-wrapper page. The only gap is for Only Mugs Work from 1938 (though there is an image of its partly pictorial frontispiece), since I have never seen a copy complete with its dust-wrapper. I would be pleased to hear from anyone who has any information about its cover-design.
All of Greenwood’s fiction and non-fiction dust-wrappers now discussed and pictured
Walter Greenwood: Not Just Love on the Dole 