If you really love the history of games:
Musée Suisse du Jeu
Some of the first sketches created by Edouard Guiton for the game.

Click on the pictures to enlarge them!

Have fun!
Robot

Robot
Gearbox

Gearbox
Antitank

Antitank
Mortar

Mortar
Paratrooper

Paratrooper
Fighter

Fighter
Boat

Boat
Castle

Castle
globe

globe
Submarine

Submarine
Multicanon

Multicanon
Machine gun

Machine gun
Megacannon

Megacannon
Tank

Tank
Plane

Plane