The Bank from Loftus

Captioned ”Kilton Bank, Loftus” this image (from a proof copy of a proposed postcard) is more familiarly known as Mill Bank or Loftus Bank. Sadly both wall, gate and onlookers now long gone. In the background the trestle way which carried the ironstone from the mine across the valley bottom can be seen, can anybody assist with a possible date?

Image courtesy of Olive Bennett.