I'm not sure if it's black light. I think it's from about 1970. It has wear and marks and tears on the edges. It has been rolled up, so it has creases. The back has some old stuff that they used to stick it on the wall with. It does have pin holes on the edges. See photos sold as shown.

It measures 21 and a half inches by 31 and 1/2 in. It says treehouse on the bottom, and it is number 675. It was made in Eugene, Oregon, USA by Western Graphics Corporation. It is sold as shown. The rocks are not included, only used to hold the poster down.