Picture of valvulotome with a mm ruler showing size, ""Figure 1 - The valvulotome was used on all the cases presented. It contains two serrated cutting surfaces one of which telescopes into the other.""
Picture of valvulotome and heart showing where to make the incision, items identified, ""l. auricular appendage, L. coronary vessel, L. Phrenic n., V. ventricle, Pericardium, Totaling heart to fight by traction on pericardium, Pieura, incision in heart, R. vent., Valvulotome, open, closed"", drawing signed by L. Schlosoberg
Photo of sketch of valvulotome during surgery, identifications on sketch, ""picture of Valvulotome being directed toward mitral orifice"", ""Scarred anterior and posterior mitral leaflets resulting in small orifice"", ""Stenotic mitral orifice viewed from above"", signed by Schlossberg