- Title
- Test Instruction number 1140 - SRE Serial number 322 - 'Tabby' (secret) [Investigation of British Army signals, radio and electrical equipment] [Includes 3 bound reports and 36 photos]
- Contents range
- 1944 - 1944
- Series number
- MT801/1
- Control symbol
- TI-1140
- Access status
- Open
- Item ID
- 649327
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