INTERIOR OF THE ROYAL ALBERT HALL.
The Royal Albert Hall, Kensington, was built in 1867-71 at a cost of £200,000, of which some £40,000 was obtained by the sale of boxes. The arena is 100 feet by 70 feet, and holds a thousand persons, while altogether some eight thousand can be comfortably accommodated. Above the three rows of boxes and the balcony, is a gallery, where on occasion pictures are exhibited. In keeping with this enormous amphitheatre is the organ, one of the largest in the world, with its eight thousand pipes, and its bellows worked by two steam engines. The Hall is used mostly for organ recitals and concerts; but now and again, so admirable are its acoustic properties, it is the scene of public meetings.
source: The Queen's London : a Pictorial and Descriptive Record of the Streets, Buildings, Parks and Scenery of the Great Metropolis, 1896