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Chicago Metra Electric ticket, with three holes punched by the conductor, each hole looking like a two-dimensional view of the Moon sliding behind (or on front of) the Earth.

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Chicago Metra Electric ticket, with three holes punched by the conductor, each hole looking like a two-dimensional view of the Moon sliding behind (or on front of) the Earth.
https://kfogel.org/media/2b977e2c-b4e9-48ae-b086-c179d6f5aaab/PXL_20250128_145136116.jpg

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Karl Fogel (kfogel@kfogel.org)'s status on Tuesday, 28-Jan-2025 23:57:01 JST Karl Fogel

Each conductor on Chicago's Metra Electric commuter train has a uniquely identifying hole punch shape. Many of the shapes are familiar to me now. I don't know this conductor's name, but I always think of her as Ms. Mandelbrot.

In conversation about 2 months ago from kfogel.org permalink