The statue is "Laocoön and His Sons," a famous ancient sculpture depicting a scene from Greek mythology
Of plaster construction circa 1842-1844
L. Brucciani was at this point at 5 Little Russel street, covent garden
Just prior to his retirement where he handed over the business to his nephew D. Brucciani who further grew the business to supply the south Kensington museum and then the V&A museum.
A stunningly impressive large scale model with great scale.
A couple of historic repairs 
Nothing detracting from the piece 
71cm overall