I'm afraid I have to ask......what makes anyone think this is W/F's and by Boffo? If it's based on the colour, then why not pick anyone of ten other companies?
Bull's were made by an infinate number of companies, probably in every country in the world.
Sorry, but I'm sitting here reading the thread and wondering "Is it me?"
One tenuous link with a company and we have a possible attribution
PS. Perhaps because I've been voting on W/F's dot com lately without making comment (as I do periodically) I am the current phantom on there? If comment was always required on the vote, personally I wouldn't vote!