It was a thread on OG KTT.
White guy in a train talking really fast with music playing and it sounded like rap. Video was black and white.
I think it was 1920 or 1930s.
Who has the thread or video link? was a youtube video I’m pretty sure
i remember this. it was called train mail or something.

Unbelievably real
@vinnievagabond
9 years ago
MC Grierson spitting some Old School Britcore!
Asleep in working Glasgow, asleep in well-set Edinburgh,
Asleep in granite Aberdeen,
They continue their dreams,
But shall wake soon and hope for letters,
And none will hear the postman's knock
Without a quickening of the heart,
For who can bear to feel himself forgotten?