While looking through the Starfleet Recognition Book Vol#1 last night I came across this conflict regarding the Norway class.
In the "Fleet Data" it states that 2 dozen ships have been produced and that all survived the Dominion War. Down in the 'Noteworthy Vessels/Service Records/Encounters" it states that the USS Luxembourg NCC-65054 was destroyed at the Battle of Tyra in 2374.
So which is accurate?