Egerton Genesis Picture Book or Egerton MS 1894, British Library; see Joslin, Mary Coker and Carolyn Coker Joslin Watson. The Egerton Genesis, The British Library Studies in Medieval Culture. 2001, the section beginning on p. 142
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Anderson (1964), 168; Plate 10.1 shows a modern production at York attempting to recreate the effect, sadly with very baggy suits.