At the end of the talk Hans invited his audience to view some of his superb work in this field
People from a wide variety of British Museum departments attended and the feeling was that ripples would go out into the museum world as a result.
Walking down the Charing Cross Road afterwards, I came across the work of another old friend, Martin Richardson, some of whose lenticular prints - Marilyn, Audrey Hepburn, Jane Fonda - were on display in a framing shop window.
I had some of these in my gallery earlier in the year and they go like hot cakes!