Models UPP 23/6, 23/7, 23/8

Made in Jena (GDR) 1967-1977

New series of projectors with four axes

- 1967: UPP 23/6: Calgary,

- 1968: UPP 23/6: Toronto

- 1968: UPP 23/7: Vancouver (improved controls)

- 1969: UPP 23/7: Jena

- 1969: UPP 23/6: Bogota,

- 1977: UPP 23/6: Bombay, Budapest

- 1977: UPP 23/8: Moskow (integrated automatic control)