Chicago Time Lock Co. model: Perfection @MarkFrankclocks

Chicago Time Lock Co. model: Perfection @MarkFrankclocks

Uploaded October 2025 | Updated September 2026, 2 weeks ago

Video shows and demonstrates a Chicago Time Lock, Perfection model V.2, c.1885

Chicago Time Lock Co. model: Perfection

Astro-skeleton demo of Tellurion.

Astro skeleton, Demo sunrise/moonrise-set module dials removed

Robert Roskell, Liverpool, England, c.1840 skeleton clock

Astro-skeleton, orrery finished, and functional demonstration

Holmes v.2, c. 1884, demonstration video

Yale Type B through C time locks running, 1888-1890

Astro-skeleton, Strike trains finished, less control mechanisms

Oliver Pillard model #3, New Britain Bank Lock Co., 1875. Demonstration video.

Atlas orrery clock

Yale Type B time lock, 1888, winding and setting

Astro-skeleton, fabrication of decorative winding barrel arbor rosettes

Chicago Time Lock Co. model: Perfection

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