Vintage framed poster screen print after Bridget Riley, from her 1978 "A Major Retrospective Exhibition". Screen print has been trimmed with the top portion framed, and lower text portion attached verso. Frame measures a total of 28.75" x 28.75" x 1" thick. Visible framed image measures 21.5" x 21.5". Condition: print could use a cleaning - it has remained in the frame since 1978 and shows a bit of dust settled in areas as well as very light mildew to the inside of the glass, some mildew staining to matte in areas, some discolorations to matting, frame glass has a small crack upper left corner, some minor consistent browning to paper, a few darker spots to paper on right side, see images. Weight: 10 lbs.