Crenwelge,
The date is more of a curiosity, potentialy an indicator of when past work was done. Of course it only realy tells when the bearing was made, they could have sat on a shelf for decades before instalation.
As for the can of worms, it was already open. I have taken the engine down to a bare block. All the bearings were worn down to the copper.
So. This is a way to get more life out of a crankshaft without grinding it? Would this have been seen as a get by type of fix, or good as new?
Chris