Complex sentence: In 1921 the Marubell Company began marketing celebrity photographs under the name "Promide", the first of these being a portrait of the film actress Sumiko Kurishima.
Split into simpler sentences: In 1921 the Marubell Company (マルベル堂) started marketing their celebrity photographs under the name "Promide". The first Promide photo was a portrait of the film actress Sumiko Kurishima.