Keskmine GPS koordinaadid postiindeks rm18: 51.473, 0.388

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videod linnad:
>> Tilbury RM18, Essex, England, GPS koordinaadid: 51.4625,0.3586
>> West Tilbury RM18, Essex, England, GPS koordinaadid: 51.4767,0.3895
>> East Tilbury RM18, Essex, England, GPS koordinaadid: 51.4805,0.4171