Thank-you Gents. The paint scheme was a chellenge and a lot of fun. The real plane looked like crap and I can easily make a finish look like crap!
Terry, I agree with you that it could have been the W. Nr,. but in the end I asked myself, would would anyone bother masking it or take pains to remove the white wash for just a s/n? Besides, I didn't know what it would be anyway. Kills were a source of pride so I could answer my question more positively with that option.
Anyway, it is what it is!