Published by National Surgical Co, Philadelphia, Pennsylvania, 1930
Seller: Eclectibles, ABAA, Tolland, CT, U.S.A.
The "Witelite" Diagnostic Set is marketed to dentists and physicians, and advertises itself as being on the cutting edge of medical technology: "Diagnosis by transillumination is no longer a theory . The 'Witelite' has been found exceptionally effective in detecting inflammation or congestion of the frontal and maxillary sinuses". Ear, nose, and throat diagnosis is the Witelite's specialty. Includes instructions for use and pricing. Illustrated advertising bifolium (8.5" by 4.25"). Very good. Minor toning. Original fold somewhat crooked.