Meaning of night telegraph letter in English:

night telegraph letter

Pronunciation /ˈnʌɪt ˌtɛlɪɡrɑːf ˈlɛtə/ /ˈnʌɪt ˌtɛlɪɡraf ˈlɛtə/

noun

historical British
  • A cheap-rate inland telegram delivered overnight.

Origin

Early 20th century; earliest use found in Post Office Guide. From night + telegraph + letter, after night letter.