File:Lock 20 Chesapeake and Ohio Canal drawing from HABS.png
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Size of this preview: 800 × 590 pixels. Other resolutions: 320 × 236 pixels | 640 × 472 pixels | 1,024 × 755 pixels | 1,280 × 943 pixels | 2,560 × 1,887 pixels | 9,867 × 7,272 pixels.
Original file (9,867 × 7,272 pixels, file size: 276 KB, MIME type: image/png)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 12:33, 2 June 2014 | 9,867 × 7,272 (276 KB) | JeffyP | I'm here to make the world a little bit smaller ☺ | |
21:06, 8 January 2014 | 9,867 × 7,272 (460 KB) | Bonnachoven | {{Information |Description ={{en|1=Drawing of Lock 20 (Great Falls Tavern), showing butterfly valves and conduits to fill lock (pre 1928 style lock). HABS says: HABS MD,16-____,19B- (sheet 1 of 1) - Chesapeake & Ohio Canal, Lock No. 20, MacArthur B... |
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