Infinite Earths

The Monitor Tapes List of Infinite Earths

Earths	Pre/Post Crisis	Tape #
Earth-2	Pre-Crisis	4
Earth-3	Pre-Crisis	3
Earth-6	Pre-Crisis	5
Earth-15	Pre-Crisis	2
Earth-37	Post-Crisis	6
Earth-898	Post-Crisis	8
Earth-1889	Post-Crisis	7