Reports said the Martini deal is for a "two digit million sum" per year, warmly welcomed by Williams following the departure of Pastor Maldonado and his PDVSA millions.
And the reports are now moving beyond the realm of speculation, as an image of a 2014 Williams team-shirt, featuring Martini branding, emerged on the website of an officially-licensed F1 merchandise store.
The image, which has subsequently been removed from the merchandise website, can be seen at http://img.motorpasionf1.com/2014/02/650_1000_martini.jpg
Williams said on Twitter: "Our race livery will be launched for Australia! Focus is on technical until then."