Most viewed - Rope knots hung on roof eaves, etc., were also used for communication.

File information
Filename:	ig171-20090411_0385.jpg
Album name:	philbert / Iga-ryu Ninja House and Museum 伊賀流忍者博物館
Keywords:	mie / iga-ueno / iga-ryu / ninja / house / yashiki / museum /
Filesize:	18 KiB
Date added:	Apr 17, 2009
Dimensions:	267 x 400 pixels
Displayed:	517 times
URL:	https://photoguide.jp/pix/displayimage.php?pid=28280
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