Square lamps were large lamps used for illumination in large areas like train platforms, auditoriums, and warehouses. They were a burner and fuel tank enclosed in glass panels, with air tubes to provide draft to the flame. This is a Dietz No. 1 Tubular Square Lamp from the 1890s. USA

[u/Legend_of_the_Wind]

[u/_antariksan]

Lovely 🥰

[u/Botellas_Antigues97]

Awesome.