Dating EM early frames is a long story... but yours was probably produced in the summer of 1981. Red frame + yellow inscriptions... I have a painted frame like this (E6xx); if you had to paint it, Molteni was a nice choice, but.... The debut of EMC racing bikes in the United States was the Tour of America 1983 (team Winning - Eddy Merckx - Campagnolo), they used the bikes in this painting. The import started in 1980 (Ochsner Intl - Chicago, they only imported frames and it was an absolute exception; in the years 1980-1982 Merckx could buy only ready-made bicycles), then GITA joined (and soon took over the US representation).