Here are the six addition games (and their accessory) released in 1972. The games could be bought in one complete package or seperately:
Wipeout (Pit Stop)
Rarity: 5 / 7 (boxed)
"Percepts" was a free game for customers who decided to get registered by Magnavox. The game could now be often found inside complete odyssey system packages. The shipping box for the percepts game is extremely hard to find nowadays.
The 4 ultra rare later releases (1973):
the game set and shipping box
Thanks to Nicholas Broetzman from the USA for the pictures showing the content of the 1973 games.
The Odyssey Rifle Extension (1TL950) offered another 4 games: Dogfight, Prehistoric Safari, Shootout & Shooting Gallery
Another interesting item for the Odyssey: the Apex 2-in-1 Blue Card.
Read more about this great and very first Videogame system on: Pong-Story