Has traces of some kind of material to the reverse, probably remnants of some kind of adhesive. In some places this can be made out at the front of the poster in the form of faint mottling. Certainly not very obtrusive/distracting and almost certainly something that will come out during cleaning/linen backing.
Generally displays well and just needs a clean and a small amount of minor work to take it to the next level. Originally folded in the normal way, since rolled.
Please ask all and any questions. The item "Original vintage Thunderbirds are Go UK Quad Film Poster Gerry Anderson 30x40" is in sale since Saturday, July 17, 2021. This item is in the category "Films & TV\Film Memorabilia\Posters\Originals - UK Quads\Pre-1970". The seller is "litho_lover" and is located in Wigan. This item can be shipped to United Kingdom, Canada.