Information
Sent From (Definite): Hartog Jakob Hamburger - Groningen, The Netherlands
Sent To (Definite): Albrecht Penck - Berlin
Date: 14 Apr 1915
Description

After the release Penck from British internment, Hamburger encourages him to help the release of CSS's colleague Watt from German internment, which had been earlier arranged by way of prisoner exchange.

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