Charles, many thanks for the comments. The pens used were Eddings 0.5. and 0.1 although I did find even this to be a little too heavy for the effect I was after. I used to have rotrings years ago but unfortunately my nearest supplier didn't have them in when I needed a relacement.
Gunboat, again thanks for the supportive reply. I've a large number of books and photos that I scour for reference when trying to compose these things and sometimes it can be difficult to get unrelated pieces to complement each other so the final result looks right. I did struggle with some aspects of this drawing and no little correction was required at times (a real pain when using ink) but in the end I'm reasonably pleased with the result.
Abraham, similarly your comments are much appreciated. A couple of months back I stumbled upon a site related to Blackburn that commemorated John Rimmer of C47 who who was killed during this event.
www.cottontown.org/page.cfm?pageid=4833&language=eng This inspired me to illustrate the action. I've since learnt much more about the tank assault on Fontaine and it certainly captures the imagination....crews fighting desperately through a restrictive urban environment without infantry support. I recently read Ian Verrinder's book Re: 'B' batalion and the caualty list Ian produced for that battalion alone speaks volumes about the heroism of the tank crews.
thanks again, ET