Mauritania Stamp, Camel with Rider, 3c

This is a vintage postage stamp from Mauritania, featuring a camel with a rider. The stamp is rectangular, with perforated edges, typical of postage stamps. The color scheme is predominantly a monochromatic tone, possibly blue-grey or dark grey on a lighter background, giving it a classic colonial era appearance. Prominently displayed at the top left is 'MAURITANIE' in capital letters, indicating its country of origin. Below this text, there is a circular emblem with what appears to be stylized initials or a symbol, possibly 'AE' or similar, although not perfectly clear. In the upper right corner, there's a symbol resembling 'FR' or a stylized 'R'. The central motif depicts a person, likely a male, with textured hair, dressed in flowing garments, riding a camel in profile view. The rider holds reins or a lead line. The background above the camel and rider is stippled, suggesting a desert sky or texture. At the bottom left, the word 'POSTES' is written, signifying its use as a postal item. The denomination '3c' for '3 centimes' is clearly visible in the bottom right corner, in a bold, sans-serif font. Below the camel's belly, near the bottom edge, a signature or engraver's mark 'H. CHEFFER' is visible, although somewhat stylized. The stamp appears to be in relatively good condition for its age, with all text and imagery intact. There might be some slight discoloration or toning consistent with age, but no major tears or creases are immediately apparent. The perforations around the edges seem complete and mostly undamaged. The overall style suggests it could be from the early to mid-20th century, reflecting the colonial period of French West Africa.