I’ve liked this photograph for a long while, gazing out across the water he seems almost u

I’ve liked this photograph for a long while, gazing out across the water he seems almost unaware his picture is being taken, relaxed and at ease to be outdoors undressed.

Regrettably I don’t have the name of the photographer, only that it was a shot from 1906/07 - I appeal to you, good readers of discerning taste and extensive knowledge, if anyone knows the artist I will be glad to add that information here!

[edit : My gratitude to one of my well-informed followers, who tells us “The photograph was published in the 1906 volume of Photograms of the Year, where it’s titled Bather and credited to Dr. A. Wilhelmij.”]