Technical drawing of Machinery for N⁰ 7 Coal Drop at a scale of 3/4 inch to 1 foot.
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Image details
| Creator | River Wear Commission |
|---|---|
| Date | 1911 |
| Format | Plan |
| Publisher | Sunderland City Council |
| Subject | Coal, Staithes, Drops, Engineering Plan, William Simpson |
| Type | Plan |
| Unique Reference | PL0035 |
