Record

Ref No	DEP/RIJ/8/26
Title	Diagram relating to 'the estimated duration of the true human periods'
Date	c. mid 20th century
Description Of Item	Clipped printed diagram in a scrapbook from the collection of John Ritchie relating to ‘the estimated duration of the true human periods’. The timeline spans from 50,000 BC to 1920 AD.
Extent	1 item

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