Patt.50 / 50A / 50B (1935 - 1953)
Named Pageant, after the Tower of London Pageant for which it was made.
Patt.50A replaced by Patt.58 in 1953
LSI Classic Gear: Patt.50 Pageant (February 2012)
From Lighting & Sound International
Exhibits in the Backstage Heritage Collection
Catalogue & Journal Entries for Patt.50 / 50A / 50B in the Backstage Heritage Collection