Essex Company Machine Shop | |
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   | |
| Location | Lawrence, Massachusetts |
|---|---|
| Coordinates | 42°42′34″N 71°9′17″W / 42.70944°N 71.15472°W |
| Built | 1846 |
| Part of | North Canal Historic District (ID84000417) |
| NRHP reference No. | 72000138[1] |
| Significant dates | |
| Added to NRHP | November 9, 1972 |
| Designated CP | November 13, 1984 |
Essex Company Machine Shop, also known as Stone Mill or the Lawrence Machine Shop, is a historic machine shop on Union Street in Lawrence, Massachusetts. It was built in 1846 and added to the National Register of Historic Places in 1972.