O.S.

* * * * *

"With the use of the various kinds of periscopes we could see

quite clearly every movement on the German side, and even hear

them talking."--_Daily Chronicle._

Try our new periscope, with telephone-attachment.

* * * * *

Punch, or the London Charivari, Vol. 150, March 22, 1916 · 第 6 / 25 题