For people still looking for those: https://www.tileshop.com/product/carrara+gris+ceramic+subway+tile+-+4+x+8+in..do?sortby=ourPicks&from=Search

The tile was custom cut in the field from larger tiles. This was done to match the stone in the waterjet stone pattern on the back wall.

May I have the size of the tile (cut into herringbone)?