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Swan's patent lamp holders to fit gasoliers
![Swan's patent lamp holders to fit gasoliers](https://coimages.sciencemuseumgroup.org.uk/312/160/medium_smg00032458.jpg)
Swan's patent lamp holders to fit gasoliers, a union between gas brackets and fittings; Faraday & Sons Lampholders; Woodhouse and Rawson's Lampholders; Vitrite Lampholders; Goolden's and Trotter Lampholder with switch to imitate gas; 16 objects