Silvaine Gustave Sandras (24 February 1872 â 21 June 1951) was a French gymnast who competed in the early 20th century. He participated in the 1900 Summer Olympics in Paris, France, and won the equivalent (see 1900 Summer Olympics) of a gold medal in the only gymnastic event to take place at the games, the combined exercises (see Gymnastics at the 1900 Summer Olympics).