File:Ordnance Survey One-Inch Sheet 106 NW London and Watford (contour), Published 1935.jpg
![File:Ordnance Survey One-Inch Sheet 106 NW London and Watford (contour), Published 1935.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/7/7a/Ordnance_Survey_One-Inch_Sheet_106_NW_London_and_Watford_%28contour%29%2C_Published_1935.jpg/700px-Ordnance_Survey_One-Inch_Sheet_106_NW_London_and_Watford_%28contour%29%2C_Published_1935.jpg?20180505172055)
Size of this preview: 700 × 600 pixels. Other resolutions: 280 × 240 pixels | 560 × 480 pixels | 897 × 768 pixels | 1,195 × 1,024 pixels | 2,391 × 2,048 pixels | 13,554 × 11,612 pixels.
Original file (13,554 × 11,612 pixels, file size: 17.66 MB, MIME type: image/jpeg)