Easting and Northing additions for OS grid references
Lists example from a Well House Consultants training course
More on Lists [link]
Source code: os_letters.txt Module: T206
# Easting and Northing additions for OS grid references / Great Britain
# Take grid reference ST899646.
# That's row 2, column 4.
# So overall Easting is 4 x 1000 + 899 = 4899
# And overall Northing is 2 x 1000 + 646 = 2646
SV SW SX SY SZ TV TW TX TY TZ
SQ SR SS ST SU TQ TR TS TT TN
SL SM SN SO SP TL TM TN TO TP
SF SG SH SJ SK TF TG TH TJ TK
SA SB SC SD SE TA TB TC TD TE
NV NW NX NY NZ OV OW OX OY OZ
NQ NR NS NT NU OQ OR OS OT ON
NL NM NN NO NP OL OM ON OO OP
NF NG NH NJ NK OF OG OH OJ OK
NA NB NC ND NE OA OB OC OD OE
HV HW HX HY HZ JV JW JX JY JZ
HQ HR HS HT HU JQ JR JS JT JN
HL HM HN HO HP JL JM JN JO JP
HF HG HH HJ HK JF JG JH JJ JK
HA HB HC HD HE JA JB JC JD JE
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