From 1954 to 1961 John Lehmann was the editor of The London Magazine. I am currently preparing a pile of them for sale and just glancing through shows just how influential and important a magazine it was under Lehmann's editorship. The contents page reads like a roll call of the great and the good in literature (in fact, the preponderance of the Gay Litterati might also be noticed): Thom Gunn, Christopher Isherwood, Roy Fuller, Augustus John, W. H. Auden, Paul Bowles, Angus Wilson, Ted Hughes, John Betjeman... to pick just a handful at random from the covers.
And in amongst the words are what Lehmann, on the contents page, quaintly refers to as 'decorations in the text' - again the names John Minton, Phillippe Julian, Edward Ardizzone, and Keith Vaughan belie the offhand description. These two 'decorations' by Vaughan are from consecutive issues in 1955, there may well be more, I have by no means a complete run of the Magazine.