Again wow where did you get that and I want one too...from Kurrgo Master of Planet X or something like that.
Again, not real sure, but this one's been around since those groovy, right-on, psychedelic days---I even remember seeing it in a room like Spencer's or such, amongst a ton of posters just lit by blacklights
I used to have a Doctor Strange black light too I think poster on my wall in the house I grew up in,in Erie PA. Got to find that picture. Never ever saw this Kirby one. Would kill for it.