Lettering and Calligraphy in Current Advertising and Publishing (Exhibition Catalog), with Mechanical, 1945 Box 7, Folder 3 Highlight Lettering and Calligraphy in Current Advertising and Publishing (Exhibition Catalog), with Series II: Project Files, 1940s-1994, undatedSubseries II.3: Other Projects Files, 1940s-1950s, undated, undated
Society of Scribes and Friends: An Exhibition of Calligraphy and Illumination, 1975 December -1976 January, 1975 Box 21 Highlight Society of Scribes and Friends: An Exhibition of Calligraphy and Illumination, 1975 December -1976 Series VI: Printed Materials, 1940s-2001Subseries VI.1: Materials Related to Grushkin, 1940s-2001
Cooper Union Art School Invitation, 1950s Box 5, Folder 7 Highlight (Gruskin designed the calligraphy) Series II: Project Files, 1940s-1994, undatedSubseries II.3: Other Projects Files, 1940s-1950s, undated, undated