Well it was quite simple really , I was a member of the ground crew back then , in order for us to keep tally of each successful mission we painted every tenth one with a red bomb, easier to read instead of adding them all up
Hope this helps
By the way nice finished product Mark, it's good to see her in all her glory again
Regard
Stu Jones
ex 17(f) Sqn Bruggen
I will try and post some pics of her in due course