field, field, field and chang: Markers on the MDF
field, field, field and chang: Spare parts jars in the Technical Officer's office
field, field, field and chang: Spare parts jars in the Technical Officer's office
field, field, field and chang: Sign on the door of the Technical Officer's office
field, field, field and chang: Fault codes on the test desk
field, field, field and chang: Main distribution frame
field, field, field and chang: Back of a uniselector bank, step-by-step suite
field, field, field and chang: Racks in the equipment area
field, field, field and chang: Fuses on step-by-step equipment
field, field, field and chang: Machine selector switch on the ringer controls
field, field, field and chang: Fuses on the ringer