Thermo-cautery cap with branch pipe, Paquelin's, by S. Maw, Son and Thompson, London, England, 1870-1901, plated brass Thermo-cautery cap with branch pipe 1870-1901
Thermo-cautery cap with branch pipe, Paquelin's, by P.A. Stoss, Wiesbaden, Germany, c. 1900 to c. 1940, plated brass Thermo-cautery cap with branch pipe 1900-1940