These stories centre around the use of the Reacher-Outer-Bringer-Backer - "a device that enables one to hear conversations from bygone eras". The main character, Eddie Rumpelmayer, uses it for various absurd money-making schemes which inevitably go wrong.
Blair, Richard. 'Blown to Blazes & Other Works of J.B. Blair and Jim Blair's years at The Bulletin (1934-1961)'