Gloucester, Mass.: Michael Domoretsky and Graham Noll gave a presentation on their findings of hidden images in the work of Leonardo da Vinci at their first public presentation of their work with Domoretsky's The da Vinci Project Research Group. Here Domoretsky explained how perpendicular mirror imaging, which he read from Da Vinci's own notes, revealed various symbols when put together.
None / Handout / Gloucester Daily Times