Christina in red, 1913

Lieutenant Colonel Mervyn O’Gorman, a distinguised Aeronautical engineer, took these autochromes of his daughter Christina at and near Lulworth Cove in Dorset, in 1913.

The photographs are in the collection of the Royal Photographic Society.
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Addendum:
Thank you to those people who commented that the first picture was reversed. This has been rectified.