From International Signal Code Alphabet
Medium: Ink on paper with tracing paper overlay and collage Dimensions: Sheet: 8 1/2 x 11 in. (21.6 x 27.9 cm) Credit Line: Collection UCLA Grunwald Center for the Graphic Arts, Hammer Museum. Corita Kent Bequest. Accession No.: 1990.1.1161 Paper/Support: Paper Inscriptions: u.l. handwritten in ink: "u"; u.r. handwritten in ink: "4"; c. handwritten in ink: "enlarge 4 as large as it will fit- / have left + top points touching top +left edge (ok if it touches bottom too if the proportion works out [sic] / use U + S over again where outlines indicate"; l.l. handwritten in ink: "it reads U IS 4 US";
"Untitled." Corita Kent in the Grunwald Center Collection. Los Angeles: Hammer Museum, 2017. https://hammer.ucla.edu/collections/grunwald-center-collection/corita-kent/art/untitled-preparatory-material-for-u-is-for-us/.