Ultraviolet lamp, generator housing only, metal with ebonite top surface in poor condition, by Medical Supply Association of London, 17-18 Gray's Inn Road, London, England, 1851-1900. Ultraviolet lamp 1851-1900
Ultraviolet lamp, metal, Jupiter model, from Dr. J.D.W. Whitney, Germany, 1901-1920 Ultraviolet lamp 1901-1920
