The cover for the Harlequin edition of The Window with the Sleeping Nude has two significant differences from the Quinn Publishing version. One is obvious - more people looking at the nude. The other is less obvious. In the Harlequin version the view is from inside the store with the people outside (see the reversed sign on window). The Quinn version has the view from outside with the people on the inside.
Neither Harlequin cover is signed.
Harlequin 106 - April 1951
Handi-Book 118 - 1950
Harlequin 245 - September 1953
Robert Hale - 1952