• Walter Ballmer 1960
  • Walter Ballmer.
  • 'Stile Olivetti Geschichte und Formen einer Italienischen Industrie' Museum für Kunst und Gewerbe Hamburg Exhibition Catalog, Design: Walter Ballmer, 1962
  • Vintage Olivetti  advert circa 1973. Designer Walter Ballmer #vintage_design
  • Thinking Walter Ballmer. 07 22 1923 | THINKINGFORM
  • walter ballmer
  • Walter Ballmer, Olivetti advertisement, 1970
  • Walter Ballmer
  • Olivetti Corporate Identity
  • poster by Walter Ballmer (1977)
  • Walter Ballmer.
  • poster olivetti
  • Pirelli rubber soles ad by Walter Ballmer (1961)
  • Olivetti — Walter Ballmer (1970’s)
  • Walter Ballmer, Olivetti booklet cover, 1966
  • Walter Ballmer.
  • Walter Ballmer 1978. @Deidré Wallace
  • Amsterdam AGI Congress / Walter Ballmer
  • Design by Walter Ballmer, Milan, Italy 1960.
  • Walter Ballmer, book of Olivetti marks, 1971