If you enjoy www.victorianlondon.org why not ...
ROYAL GALLERY OF ILLUSTRATION, 14, Regent-street. War with Russia - The Diorama, illustrating Events of the War, including Battle of the Alma - Pictorial Map of Sebastopol - Entrenchment of the Allies - Balaklava, &c. The lecture by Mr. STOCQUELER (with description and diagrams of bastions, parapets, gabions, fascines, minié rifles, revolvers, &c.) daily, at 3 and 8. Admission, 1s., 2s., and 3s.
advertisement from The Times, December 16, 1854
GALLERY OF ILLUSTRATION, 14 Regent Street. This gallery is open for the illustration of character from real life. The performers are Mr. and Mrs. German Reed, and Mr. John Parry; and the entertainment, which is partly musical, consists of two pieces, and a descriptive Song by Mr. John Parry. It has been established many years, and is one of the most popular and fashionable places of recreation in the Metropolis. Prices of admission: Stall chairs, 5s.; stalls, 3s. ; unreserved seats, 2s., 1s.
Cruchley's London in 1865 : A Handbook for Strangers, 1865