exodus
When examining the Lockless box, Kvothe guesses it's age to be about 3000 years old and Meluan appears to agree with his estimate. Assuming they are both close to the truth That then gives us an approximation as to the date of Tehlu Day and the age of the 4Corners both. Shaped ware does not corrode, not even a tiny bit which indicates to me that any 'carving' on it will appear exactly the same as the day it was made, implying it's not carved at all since tools don't exist that could do this. taking a brass rubbing to highlight the pattern would be my next step but I'm not there so we shall never know. If Kvothe's guess about iron copper in the wood is also correct hints at these names being 2/3 of it's total long name composition. But a lot of folk have suggested that copper does not have a name which would act as a very secure way of making sure it stays shut. Perhaps one of the words forsworn is the name of copper. The lock them could never be opened...