Bolsheviks.
After the Bolshevik Revolution, the dolls in the 1920s took a political turn, depicting workers in different trades, historical figures and even enemies of the people.
In the 1930s the state took over their production with factories set up in different cities. The exhibition has some dolls from Russia´s far east along with others painted as Arctic Eskimos, highlighting the considerable size of the Soviet empire.
One even has dolls inside dolls from the Soviet Union´s many different ethnic groups. The largest is a bearded Russian peasant, followed by his wife in yellow headscarf, with figures from Ukraine, Belarus and the Caucasus and Central Asian nations progressively smaller.
Under the Soviets, the matryoshka developed into a mass-produced souvenir, and by the 1950s they all looked similar -- smiling and round-cheeked. "The basic look of the mass-market, commercial type of matryoshka became firmly fixed," Titova said.
But in the 1960s in the heyday of Russia´s space programme, several dolls paid tribute to Yuri Gagarin and other heroes of early space exploration.
One set of 10 dolls at the exhibition wear yellow space helmets and come in a rocket-shaped case.
In the late Soviet era, the dolls became more ornate, with brighter colours and outfits featuring large, stylised flowers. The emphasis was often on larger dolls with many more inside -- 25 or more.
The largest known matryoshka has 100 pieces, Titova said -- while a standard matryoshka only has six to eight.
But the exhibition breaks off as matryoshkas entered the post-Soviet era. "Updating the collection in the 1990s was difficult," Titova said.
Mass-produced dolls today feature sports teams or Russian and Soviet leaders or pop stars, but most are still traditional.
"Matryoshkas are nearly all the same," said Pyotr Kozlov, a journalist who designs matryoshkas, selling them online under brand name Duxovnaya Skrepa.
His first design was a moustachioed "rainbow doll" painted in the colours of the gay pride flag.
He went on to create dolls wearing bright balaclavas, inspired by Pussy Riot punk group. Group member Nadezhda Tolokonnikova posted pictures of Kozlov´s dolls on her Instagram.
"My idea was to try... to capture some trend -- cultural, political or economic -- that´s appearing now and quickly create matryoshkas," he said.