Sepia photograph of an exhibit with cylindrical electrical machinery behind rope barriers, a wooden panel of pictures, and a sign reading Société Alsacienne de Constructions Mécaniques.

Electrical machinery at the Société Alsacienne exhibit, 1904 fair

A sepia photograph of an exhibition display with a dark wooden panel of framed pictures bearing a lettered sign above. In the foreground, a cylindrical electrical machine and a smaller motor sit on a platform behind a low rope barrier with brass posts. The bright, high-roofed hall stretches back to other exhibit stands.

Artist: Unknown
Date: 1904
Medium: Photographic prints
Source: Wellcome Collection
Size: 4000 × 2971 px

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Public domain · Licensed CC BY 4.0 (Wellcome Collection) by Wellcome Collection; credit required.
Rights checked 2026-11-05 · tier C · as stated by the source: CC BY 4.0 (Wellcome Collection)

Credit (appreciated, not required for public-domain works): Wellcome Collection. Attribution 4.0 International (CC BY 4.0)

sepia photograph early photography 1904 world's fair louisiana purchase exposition st. louis machinery exhibition hall electrical machinery