Hello Westin,
Welcome to the forum. Nice looking 'G Date'.
The full S# is 1814b.
8,82 under the S# on the barrel is the bore measured in millimeters from land to land.
W][154 and S][92 are acceptance stamps. The droop winged eagle stamps are firing proofs, found on the receiver, barrel and breechblock.
There are much more knowledgeable members here to help, but I hope this answers some of your questions.
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Mike C.
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