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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 4.814m to data values 1961-1964 to refer to RLR
Add 4.210m to data values 1965-1979 to refer to RLR
Add 4.193m to data values 1980 onwards to refer to RLR
RLR is 10.200m below primary benchmark SU 6269 0053