'Hedged Round With Steel and Concrete, the 100-Inch Reflector', c1935. Artist: Unknown.
2-688-460 - The Print Collector/Heritage Images
'Hedged Round With Steel and Concrete, the 100-Inch Reflector', c1935. From Our Wonderful World, Volume II, edited by J.A. Hammerton. [The Amalgamated Press, Ltd., London]