Today I am featuring two posters in my collection, although I don't count this as a "Posterama" entry.
First up is this unusual 1966 "Tomorrowland" poster, which is from a set of five offset litho prints that (apparently) were sold in stores at Disneyland briefly. None of the posters are common, and complete sets can fetch well over $1000. I only have this one!
Next is this poster from Pacific Ocean Park, featuring fanciful artwork of the "Sea Circus". "From an outstanding collection of posters designed by Earl Newman for Pacific Ocean Park". You go, Earl! It appears to be a linoleum-cut print using red and yellow, and the white of the paper. I'd love to see other posters from this set, if anybody has any!