![](https://nthumb.tpgimages.com/mid2_ocom_img/dW5pdmVyc2FsX2ltYWdlcw==/20120511_3_rm/2012051416/top_20120514163834_6999.jpg/TOP09100611.jpg)
Sectional view of a telegraph tower using Chappe's (1763-1805) semaphore system, showing the method of moving the signalling arms. From Louis Figuier Les Merveilles de la Science, Paris, c1870. Engraving
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Details
Creative#:
TOP09100611
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
NO
Property Release:
NO
Right to Privacy:
No
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