1969 leipzig spring fair, march 3, 1969, delegates of the ussr and gdr watching a demonstration of the first long-distance data transmission leipzig-moscow-leipzig (2,000km in each direction) using transmission equipment newly developed by the rafena enterprise in radeberg (gdr), a numerically controlled processing center which was directly connected via the telecommunication network with the computer center of the institute for machine tool engineering (enims) in moscow, seated in the first row (r to l) are v,a, kirillin, deputy chairman of the council of ministers and chairman of the committee of the ussr council of ministers for science and technology; walter ulbricht, first secretary of the central committee of the socialist unity party of germany (sed) and gdr state council chairman; lotte ulbricht; willi stoph, gdr prime minister; ussr ambassador to gdr, p,a, abrassimov; friedrich ebert, sed cc politbureau member; and rudi georgi, minister for verarbeitungsmaschinen und fahrzeugbau of the gdr.