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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 5.346m to data values 1916-1920 to refer to RLR
Add 5.700m to data values 1952-1964 to refer to RLR
RLR is 11.000m below primary benchmark BM 1 E