Snakes & Ladders 1-25 Large Full Solid
https://www.thermoplastic-markings.co.uk/shop/tmg003-25lf-snakes-ladders-1-25-large-full-solid-1997
https://www.thermoplastic-markings.co.uk/web/image/product.template/1997/image_1920?unique=4c0f250
Internal Reference:
TMG003-25LF