Traditionally a manufacturer of spermicidal pessaries, Rendell proffered 'Norolen' (an 'Oral') via pseudo-pedagogic means: the discrete, quick-reference doctor's booklet, explaining different denominations of oral contraceptive.
"Properly kept, this hand-book should be of great assistance in enabling you to prescribe for your patients with minimal consultation". 1967. ‘Oral Control of Conception’ medical handbook / WJ Rendell, 'Norolen'. By kind permission of WJ Rendell Limited. Courtesy of Julia Larden, and the Wellcome Library, London. Photography by J Borge 2014 CC BY 4.0