An open, but complete, set of six unused cards produced by the Science Museum in conjunction with the Urban Council.  The scan shows the paper sleeve (upper left) and three of the six cards.  The other three cards include a relief model of Hong Kong’s land area, a security robot on patrol in the museum, and “images made from the synchronization of a series of time-lapsed images taken by camera”.  The aircraft, not incidentlly, is “Betsy,” a DC-3 built in 1942 and the first plane of Cathay Pacific Airways.  Grade: 1