The drawer contains c 3000 aperture cards of drawings of electrical machines and details, components for traction motors, motor generators, metadyne machines and auxiliary generators. Drawing number ranges are B3022200 - B3022300; B3024602 - B3038267; B3090400 to B3091499; C3022100 – 3091500; C4196001 - C4196199; C4196200 - C4197579; C4053000 - C4053499. Samples are below:

B3090400 - MV Sheffield, Armature and Bearing Assembly MD81B1 – AY131

B3090900 - MV Sheffield, Brush Gear Assembly MG92 Generator End

B3091499 - MV Sheffield, Shaft MG51 & 52

C4196201 - AEI MV Manchester , GE731 Railway Motor Pinion

C4197579 - GECT Preston, SH149A2 Choke Coil: Bill of Material for Choke Coil Insulation

C4053000 - AEI MV Sheffield, Brush Holder Liner MV137 Railway Motor

C4053499 - AEI MV Sheffield, Stator Coils AG230AW