Back Grid Cenedlaethol yr Arolwg Ordnans Welsh Ordnance Survey National Grid English شبکه ملی مرجع Persian Ordnance Survey National Grid French OSGB36 FRR आर्डिनेंस सर्वेक्षण राष्ट्रीय ग्रिड Hindi Sistem grid Britania ID British national grid reference system Dutch Ordnance Survey National Grid SIMPLE İngiliz grid referans sistemi Turkish
Als National Grid oder British National Grid (BNG) wird das auf den Karten des britischen Ordnance Survey verwendete Koordinatensystem bezeichnet.
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