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1858 Diagram showing the principal triangulat … Survey Book Diagram showing the principal triangulat … |
1857 Frontispiece: Geometrical projection of … Survey Book (Frontispiece to) Geometrical projection … |
1847 Plate II: Ordnance Survey: Base apparatu … Survey Book Ordnance Survey: Base apparatus. Plate I … |
1847 Plate III: Ordnance Survey: Base apparat … Survey Book Ordnance Survey: Base apparatus. Plate I … |