Crisp mid-century modernist architecture meets Catholic academic ambition in this 1950s postcard of the Marian Library at Rosary Hill College in Snyder, New York — a structure whose flat rooflines, ribbon windows, and geometric massing speak fluently in the International Style vocabulary then sweeping American campus design. Founded in 1947 by the Sisters of Saint Francis of Penance and Christian Charity, Rosary Hill was established as a four-year liberal arts college for women on a beautifully landscaped 27½-acre campus in the Buffalo suburb of Snyder, Erie County. The library building, named in honor of the Virgin Mary, anchors the composition against a dramatic cloudscape; a cross is visible on the façade above the entrance. The reverse, annotated in pencil with "Erie Co." and a dealer price of "$5," provides a concise institutional description of the college. Rosary Hill College was later renamed Daemen University in 2022, making this postcard a document of an institution that no longer bears its original name — a detail that sharpens its historical value for collectors of Western New York ephemera and Catholic college material.