To me Bukowskis letters are up there with his best work. Especially the letters of the 60s. He really exploded in all directions during this time.
It's mindblowing to me that he would send this huge letters to people everywhere, with drawings added on top, basically sending them into a void not knowing if the recipient would throw them away, tore them up, lose them, piss on them ...
Interesting tho that he put that part from a 1965 letter to William Wantling in a column in 1969. Since he didn't keep carbons he must have gotten them back. I remember him writing (in the letters too ?) and asking different people for his letters back in the late 60s because some collector wanted to give him $$$ for them, among other things. I remember he complained that some people wouldn't return them with bullshit excuses.
Wantling obviously did return them.