Ephemera – Poster – Coal Mining rare large scale wall poster showing the workings of the Upper Four Feet 1st Yard Mine at the Ince Moss Colliery, Wigan, Lancs, circa early 1900s, printed on linen backed paper with coloured sections showing the various seams and workings, some ms notes, a little dusty consistent with use in the colliery but an important record of coal mining activity in the area, approx 2metres x 67cm.