Suffragette filmed at The Factory, Harpenden. The laundry's interior was built inside a large workshop in Harpenden. On screen it's Glasshouse Laundry.
Probable Named in published production coverage; the coordinate is the place itself, checked against a gazetteer.
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Venture keeps every scene location on one map, sorted by how far you'd have to walk. Open it in Harpenden and it tells you what was shot around you, how to get there, and whether you can actually go in.
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