This was at the door tonight. A never folded, US insert for the William Castle flicker, The Night Walker (1965), with art by Reynold Brown. I've always liked this artwork, and Barbara Stanwyck is a huge favorite of mine. Plus, the text at the top, with the 6, stated "claims", works well.
It could use a little bleach bath, but what is interesting is that the brown marks on the top and bottom areas are not tape residue. I thought it might be, but once in hand, it looks to be areas of darkening like can happen from heat or maybe "acid burn" from something that was in contact with the front of the insert. There are no corresponding marks on the back, so it's a bit of a mystery as to what caused them. The paper is all in tact and there is nothing (texture) on the paper's surface, either.