Preliminary chart of Grand Island and its approaches Lake Superior
        
        Scale: 1:25,000. Ungraduated chart with sailing directions. Label: Buffalo Sept. 20 1866 presented to the HBM Ship Pylades.
              
      
    Object Details
| ID: | G247:11/1 | 
|---|---|
| Collection: | Charts and maps | 
| Type: | Chart | 
| Display location: | Not on display | 
| Creator: | Bureau of Topographical Engineers | 
| Places: | Lake Superior | 
| Vessels: | Pylades | 
| Date made: | 1859 | 
| Credit: | National Maritime Museum, Greenwich, London | 
| Measurements: | Sheet: 80 cm x 104 cm |