Revised Local Reference (RLR) Diagram for VYBORG

Station ID: 83

RLR diagram based on the information in the datum section below

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Datum information

Add 5.541m to data values up to 1912 to refer to RLR (1938)
Add 4.914m to data values 1913 onwards to refer to RLR (1938)
RLR (1938) is 10.8m below BM 753 D