There's no way to view this in-game as it has been deleted, and probably will not be added back into the game in the near future, as it has been removed from the game either partially or entirely.
Tom AU seems to be almost an exact copy of Tom, he's known to have come from an Alternate Universe. He still sells the same things. You can enter the back-room to find a room full of stand disks and boxes.
You used to be able to find Tom AU from a portal over the fountain, which at the time of writing this, has been removed. However, it may come back.
He looks exactly like Tom but with a purple shirt and the iconic pot. And with a £ sign on his torso.
AU Tom in his shop while a player broke into it before it was allowed to be accessed.