21 mm diameter, 3.6 g, brass face value "5 LEI", laurel wreath, open book, one half of a gear wheel, two wheat ears, smoke flue and shapes resembling an industrial background	inscription "REPUBLICA SOCIALISTA ROMANIA" meaning "SOCIALIST REPUBLIC OF ROMANIA, Romanian coat of arms, year 1978 between two squares
21 mm diameter, 3.6 g, brass face value "5 LEI", double vegetal wreath (wheat ears, grapes, sunflower, corncob), three pentagons with diverse design elements: in the one in the middle an open book, the torch of Science, light rays, in the one at left gear wheel and oil rig, at right part of an hydroelectric plant	inscription "REPUBLICA SOCIALISTA ROMANIA" meaning "SOCIALIST REPUBLIC OF ROMANIA, Romanian coat of arms, year 1978 between two squares

The patterns pictures above appear on Romanian coins through the kind contribution of Mr. J. Ardelean.