Anyone know if 644MT or HT740

[luvrbus]

Yep Sammy Behar quite the guy I have his complete library with class books and about every manual ever printed for different buses and engines.
I enjoy reading his letters written to Prevost about problems and how to correct the problems believe or not they would respond and thanking him he was one in million   

[B_K]

Yep Sammy Behar quite the guy I have his complete library with class books and about every manual ever printed for different buses and engines.
I enjoy reading his letters written to Prevost about problems and how to correct the problems believe or not they would respond and thanking him he was one in million   

Yup he was 1 of 2 in a million! (yer the other one!)
  BK