A Seismograph in the Reception Room at Edward Heath's home, Arundells, Salisbury https://flic.kr/p/2oVuRr1 And it's description plate https://flic.kr/p/2oVtXEu
Michael Ixer ● 951d2 Comments
This is extraordinary and brilliant seismograph - wow!Thank you, Michael!
Ivonne Holliday ● 945d
And more info:https://www.engadget.com/2018-09-28-backlog-zhang-heng-seismoscope.html
Michael Ixer ● 950d