Roger Coleman
 
The left column shows the PAN editions while the right shows the Ballantine editions matched up when I get them.
    
(A work in progress as currently collecting more examples to add to the page)

Most Secret Most Secret 
PAN 0330 202642 from 1973
Cover Artist Roger Coleman
Roger Coleman is soldier on left and John Barker in British uniform.
Ballantine 0345 03368X095 from 1973
Cover Artist Roger Coleman
Roger Coleman is soldier on left and John Barker in British uniform.
    
A Town Like Alice  Legacy (A Town Like Alice)
PAN 0330 020706 from 1974
Cover Artist Roger Coleman
Ballantine 0345 031601095 from 1973
Cover Artist Roger Coleman
    
Pied Piper Pied Piper
PAN 0330 103997 from 1973
Cover Artist Roger Coleman
  Background was from Artist Partners 'war file'
Ballantine 0345 026780095 from 1972
Cover Artist Roger Coleman
  Background was from Artist Partners 'war file'
    
Coming soon The Rainbow And The Rose
  Ballantine 0345 026772095 from 1972
Cover Artist Roger Coleman
All three worked for Artist Partners, Marion was senior secretary.
    
Ruined City  
PAN 0330 102044 from 1974
Cover Artist Roger Coleman
Michael Leonard on left with moustache and lady is Nancy Egerton
 
    
  Landfall
  Ballantine 0345 026616095 from 1972
Cover Artist Roger Coleman
    
Pastoral   
PAN 0330 102923 from 1974
Cover Artist Roger Coleman
 
    
  Trustee From The Toolroom
  Ballantine 0345 026632095 from 1972
Cover Artist Roger Coleman
    
The Far Country   
PAN 0330 20260X from 1974
Cover Artist Roger Coleman
 
    
On The Beach   
PAN 0330 105701 from 1974
Cover Artist Roger Coleman
 
    
Requiem For A Wren   
PAN 0330 026720 from 1974
Cover Artist Roger Coleman
 
      
The Man With The Golden Gun
Reader's Digest Condensed Books 1966
     
Roger Coleman 
This is an artist Roger Coleman but does anyone know if it is the right one?