What is the origin of the pub name "The Blue Posts"? There are 5 in Soho, London?

Question

What is the origin of the pub name "The Blue Posts"? There are 5 in Soho, London?

Answer 1

It was the local hang-out for French sympathizers of the 19th century. The name was a reference to the natl' color of the French monarchy. The insidious plotters had designated a "post" for five (5) members of the French Kings court and military advisers...

-OR- Perhaps it has post(s) painted blue.  : )