For those who can't read bad cursive handwriting,
Panel 1:
Freddy,
Could you possibly send more money? I'm in a bit of a bind.
Karl
Panel 2:
Dear Moor*,
I sent you some pounds just last week! Is everything alright?
F. Engels
Panel 3:
General**,
I had to pawn my clothes, but other than that, same-old same-old!
K. M.
*Marx's friends called him Moor
** Marx called Engels "General"