Hi Craig, I also have never seen this photo before. I compared it to Frank Beken's two photographs taken off the Isle of Wight (see pgs 8-11 of Illustrated "A Night to Remember"), and Beken's photos also show the anchor partly lowered, but they show #1 lifeboat swung out for lowering, while your photo clearly shows that #1 is not swung out. Another photo on page 104 of "Titanic Voices", a starboard bow shot labelled "Titanic proceeds down Southampton Water", shows the anchor partly lowered and #1 boat not swung out, similar to your photo. There is also a progression of photos showing the ship's departure from Southampton in volume 1 of "Titanic the Ship Magnificent". The photo on the bottom of page 23 shows a starboard stern shot, at a similar angle as your photo, taken just as the New York was swinging out for the near-collision. This photo shows #1 lifeboat not swung out, and the anchor is fully retracted. The next photo on top of page 24 shows the Titanic from a similar angle, under way again in Southampton waters, and this photo shows the anchor partly lowered, and #1 boat is still not swung out. As Titanic was delayed several hours because of the near-collision, presumably she had to drop anchor to wait out the situation. Later photos taken at Cherbourg and Queenstown show that #1 boat remained swung out, so presumably it was swung out after your photo was taken, but before Beken's photos were, between Southampton and the Isle of Wight. I would therefore conclude that your photo was in fact taken near Southampton.
No idea of any value of the photo, but as it has not been published anywhere that I know of, it is good to see a new photo! Thanks for posting it!
Russell