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sihtnumbrid (11 kirjed):
HP1 (5)
HP10 (7)
HP11 (1)
HP12 (1)
HP13 (2)
HP14 (13)
HP15 (5)
HP16 (8)
HP17 (17)
HP18 (22)
HP19 (1)
Keskmine GPS koordinaadid postiindeks hp1: 51.762, -0.492

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videod linnad:
>> Water End HP1, Hertfordshire, England, GPS koordinaadid: 51.7551,-0.4882
>> Boxmoor HP1, Hertfordshire, England, GPS koordinaadid: 51.7551,-0.4882
>> Great Gaddesden HP1, Hertfordshire, England, GPS koordinaadid: 51.7914,-0.5051
>> Bourne End HP1, Hertfordshire, England, GPS koordinaadid: 51.7551,-0.4882
>> Nettleden HP1, Hertfordshire, England, GPS koordinaadid: 51.7551,-0.4882