UPDATE: The artist who created the object has finally been identified on a label attached to the window (see the credit immediately below the image here), and it seems that the window is now the responsibility of something called Art Production Fund. Some geometric abstractionist cognescenti (I confess: not including me) will immediately notice that the title of Anthony's piece has a history.

Anthony James New York City II 2004 [installation view]

I like it, but I have no idea who did it. This piece has been installed inside the Kantor/Feuer Window on 10th Avenue since Tuesday at least, but there's no label and the website hasn't been kept updated.

The box, punctured in a number of places for the passage of a number of colorful neon tubes, is constructed of a better grade of plywood and lined with a reflective material, perhaps mylar.