Miniature portrait on engraved mother-of-pearl of Gaston Doumergue, Minister of Colonies, Indochina, late 19th - early 20th century The highly realistic portrait is engraved in black on a piece of mother-of-pearl, mounted on a wooden stand in a frame carved with foliate scrolls. Under the portrait is written on the mother-of-pearl (in white) on a black background "M. Doumergue Ministre des Colonies" and on the left at an angle is written in Chinese and Vietnamese the artist's signature Pham Van Khué. 16 x 11 cm