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If the image above appears blurry, or you would like to see a larger image, please view the full-sized image of the RLR diagram.
Add 5.333m to data values 1883-1906 to refer to RLR
Add 6.628m to data values 1907-1912 to refer to RLR
Add 5.333m to data values 1913 onwards to refer to RLR
RLR is 8.628m below primary benchmark BM 00003