"First described by professor R. R. Macintosh in the Lancet of February 13th, 1943, this design is now the acknowledged leader throughout the world." (PENLON, 1969) Reference: PENLON. 1969. Anaesthetic Equipment - Longworth Scientific Instrument Company LTD. Abingdon, Berkshire, England. January 1969. Macintosh semi curved blade designed in a baby size, with an unfitted light bulb attached. Minor scratches and some slight hit marks over the piece surface caused by its previous use. It has the manufacturer name and the place where it was made along with the owner’s name engraved at the back of the blade. Engraved at the back of the blade near light bulb the owner details: R.C.H. / O.P.T. Stamped at the back blade base into metal the manufacturer's name and place: Longworth / MADE IN ENGLAND Stamped on light bulb base serrated surface, HEINE XHL / #059 2,5v paediatric blades, royal children's hospital, macintosh, light bulb, longworth, blade, laryngoscope