There are 3 drawings for part 34962 available in AirCorps Library

Manufacturer's Drawing

Vickers,   Spitfire Drawings,   Page: 10,   Revision: G  

G.A. OF ARMAMENT FIXED TYPE. (WITH 2 HISPANO 20 M/M + 4 BROWNING 303 GUNS)

Associated Aircraft:   SPIT  

Manufacturer's Drawing

Vickers,   Spitfire Drawings,   Page: 15,   Revision: n/a  

BELT FEED MECHANISM (20 M/M HISPANO)

Associated Aircraft:   SPIT  

Manufacturer's Drawing

Vickers,   Spitfire Drawings,   Page: 40,   Revision: D  

GUN FAIRING

Associated Aircraft:   SPIT