[Argus]

As I recall, Churchill made the V-for-Victory sign with his palm facing inward, which in Britain is also the equivalent of our "Up yours", thus delivering a double message to the Axis. Adopting the Churchill method is a good way to avoid any confusion with the so-called "peace sign".

[AnAmericanMother]

see posts 13 and 19. Apparently Mr. Churchill employed both methods at different times -- but he could be a somewhat salty character, so who knows what he was saying (or gesturing)? :-D