Francis Percival de Caux invented this endotracheal tube which was devised for use during nitrous oxide/oxygen anaesthesia. Though he wasn't the first to use a two-tube method of anaesthesia, de Caux's invention was particularly effective; in 1930 he reported having given 20,868 nitrous oxide/oxygen anaesthetics in a four year period without a fatality. A long flexible metal tube formed from tightly wound metal with a small bulbous introducer at the distal end. The tube is mostly encased in a metal and rubber sheath. The proximal end has a finger ring and screw clamp.endotracheal, de caux, airway, nitrous oxide, anaesthesia

Le Havre is an urban French commune and city in the Seine-Maritime department in the Normandy region of northwestern France. It is situated on the right bank of the estuary of the river Seine on the Channel southwest of the Pays de Caux. The sixteen photos are from circa 1917.Important Booklet as it shows rare photos of an area in France during WW1.Booklet with light cardboard cover bounded by red stringFront page is crest with poppies and titled Le Havre et Sainte-Adresse with initials E.L.D (printers initials). Written in pen on the top right corner are the words Mrs J.McIntyre Elcho Lara Lake Aus - Vic. On the back page is a stamp, Catalogues Industriels E. Le Deley 127, Boulevard Sebastopol, Paris Inside are photos of of the area around Le Havre, Franceelcho, lara lake, le havre, france, ww1, world war one, mcintrye, j. mcintrye, vue general, l'hotel de ville, sainte-adresse, vue d'ensemble du boulevard maritime, sainte-adresse - la heve, sainte-adresse - ensemble du nice-havrais, le casino et la plage, bassin du commerce, sainte-adresse - boulevard felix-faure, panorama pris de l'hotel de ville et rue de paris, le transatlantique "france" 220m de long entrant au port, "la provence" entrant au port par gros temps, sainte-adresse - ensemble du nice-havrais et des nouvelles villas, place gambetta, le nouveau casino marie-christine 1910, le pont du commerce et la bourse