Monica is the designation of a small French sounding rocket. It was built in several versions, which were between 3.05 and 6.27 m long and had a takeoff weight between 62 and 154 kg. It was launched several times between 1955 and 1962 at Bachar (Algeria), Hammaguir (Algeria) and the Ile de Levant (France).
References
Monica (rocket) Wikipedia(Text) CC BY-SA