Preliminary chart of Agate Harbor Lake Superior
        
        Scale: 1:10,000. Ungraduated chart with sailing directions. Label: Buffalo Sept. 20 1866 presented to the HBM Ship Pylades.
              
      
    Object Details
| ID: | G247:11/4 | 
|---|---|
| Collection: | Charts and maps | 
| Type: | Chart | 
| Display location: | Not on display | 
| Creator: | Bureau of Topographical Engineers; Dougal, W. H. Rabaut, C. P. | 
| Places: | Lake Superior | 
| Vessels: | Pylades | 
| Date made: | 1858 | 
| Credit: | National Maritime Museum, Greenwich, London | 
| Measurements: | Sheet: 66 cm x 54 cm |