The text on the bottom of this Magic Lantern slide reads: Looking from the northeast. Between the center columns stand the Hele-stone. At sunrise, June 21, the sun seems to rest on this stone like a ball of fire.
This image was taken before the wooden brasses were erected in 1901. I am trying to pin down the time period that the center marker appears as it is in this image.
While presenting a slide show for a local postcard club, several people noted that it like either home plate or the pitchers mound some Doughboys setup for a ball game. I have included the early colorized postcard that evoked this humorous reaction, it was franked (postmarked) in Nov 1906 several years after it was taken. I have included 2 examples showing the angle of the stones and wooden props installed in 1901.
This picture was likely taken sometime before 1901, My guess is it was taken about the time Stonehenge was put up for sale in the 1899 but it could have been much earlier.