Esther Ferrer San Sebastián, Spain, 1937 Series: Poema de los números primos (Poem of Prime Numbers [Diptych II]) Date: 1985-1986 Descriptive technique: Black thread, grey thread and ink on cardboard Dimensions: 65 x 50 cm Category:  Work on paper, Drawing Entry date: 2013 Register number: AD06714 Recent acquisition Share Tweet Esther Ferrer Artworks in the collection See all the artworks Esther Ferrer Autorretrato en el tiempo (Self-Portrait in Time) 1981-2014 Esther Ferrer Poema de los números primos (Poem of Prime Numbers) 1985-1986 Esther Ferrer Poema de los números primos (Poem of Prime Numbers) 1985-1986