Very few Range Keepers still exist. The ones that do, have survived because their ships are now museums (such as the USS New Jersey moored at Camden, NY). As far as we know, this is the only Range Keeper that is not still on a ship. This computer carries another unique characteristic: it saw action during the attack on Pearl Harbor attack in 1941.
If you know the location of any other items or have any further information, please let us know at Director@ TheComputerChurch.org.