Historical information
This ornate cross sits at the right hand side of View of Trajan's column, Cast Courts, Room 46a, The West Court, Victoria and Albert Museum, London.
Cast Courts:
"When the Architectural Courts – or Cast Courts as they are now known – opened in 1873, The Builder magazine compared the experience of seeing them to a first glimpse of Mont Blanc, creating one of those 'impressions that can scarcely be effaced'. Since then, these two enormous rooms and the reproductions they contain have continued to impress and inspire visitors to the Museum.
For centuries, antiquarian interest in world architecture and sculpture led to reproductions – or copies – being made of outstanding national monuments and notable sculptures. When the Museum was founded, it collected and displayed reproductions of great art and architecture from across the world in order to offer objects for study and tell a complete story of the history of art and design.
Casts are made by placing several plaster moulds upon the surface of the original structure. Once hardened and removed, the moulds are then enclosed in an outer casing, the interior coated with a separating agent and the wet plaster poured in. When set, the pieces are then assembled and the joints and surfaces finished off, to make a complete reproduction of the original work. The finished product – as well as being a formidable technical achievement in its own right – enables admirers to study faithful reproductions of important monuments and works of art."
Ref: https://www.vam.ac.uk/articles/history-of-the-cast-courts