Image: Brunei (left) Sulu (right) Overbeck

Description: Concession of Sabah by the Sultan of Brunei to Baron von Overbeck, December 29th, 1877 and by the Sultan of Sulu on January 22nd, 1878.
Title: Brunei (left) Sulu (right) Overbeck
Credit: Concession from the Sultan of Brunei and Sulu, 1877 / 1878 (archive version) (more details, archive version)
Author: Sultan of Brunei / Sultan of Sulu
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License: Public domain
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