This is an extension to sets 9-13, and contains a mixture of wall and girder textures. There are 30 distinct textures, plus transparent versions of the window textures, and most of them are 512 x 512 in size.
Here’s a preview. Check the gallery to see all the textures.
As usual, you will find it in-world at the Templar Creations main store, and on the Second Life Marketplace website.