There are 2 drawings for part 37949 available in AirCorps Library

Manufacturer's Drawing

Vickers,   Spitfire Drawings,   Page: 11,   Revision: C  

THERMOSTAT MOUNTING BRACKET - PORT.

Associated Aircraft:   SPIT  

Manufacturer's Drawing

Vickers,   Spitfire Drawings,   Page: 5,   Revision: D  

VENT PIPE ASSEMBLY (PORT SIDE)

Associated Aircraft:   SPIT