VMP4, OSRAM, CATKIN VALVE

CV378, MILITARY SPEC GZ37, MULLARD, MITCHAM PRODUCTION, JANUARY 1964, WHITE PRINT, BOTH MILITARY CARTOUCHE AND CIVI WHITE OLD SHIELD MARKINGS

ECC34, MULLARD, OLD SHIELD, FACTORY CODE 1322 E1, 1951 PRODUCTION

PT15 , MATCHED PAIR, GEC, VT104, SHAW PRE 45 PRODUCTION,, AS USED IN T1154

MS4, 5 PIN, MARCONI, WAISTED ENVELOPE, LARGE TOP CAP ESCUTCHEON, CV1164, MS/Pen, NR37

KT61, OSRAM, GREY GLASS, BLACK BASE, ETCHED CARTOUCHE, BLUE & WHITE SQUARE DECAL, OCTOBER 1946 PRODUCTION