Last year I posted these pictures of the, as then unknown to the blog, Century 21 Topo Gigio Camper Van. As discussed at the time, the box is clearly the same style as Project Sword, with the familiar red side bands and yellow edgeing.
Well here's another first for the blog, the Century 21 Topo Gigio Hot Rod (middle of picture below)! The box art is once again virtually the same as that of Project Sword.
As far as I know there is one other vehicle in this range (there are also Century 21 dolls and costumes), as mentioned in Dennis Nicholson's wonderful book the Gery Anderson Memorabilia Guide, the Century 21 Topo Gigio Ice Cream Van, although I have never seen this toy so I cannot say for sure whether it is boxed in this style.
All of this naturally begs the intriguing question - which toys came first, Topo Gigio or Project Sword?