Mauritania_1967_Yvert_PA67-Scott_C63_brown_a

Mauritania_1967_Yvert_PA67-Scott_C63_brown_b

Mauritania_1967_Yvert_PA68-Scott_C64

Mauritania_1967_Yvert_PA68-Scott_C64_brown

Mauritania_1967_Yvert_PA68-Scott_C64_dark-orange

Mauritania_1967_Yvert_PA68-Scott_C64_dark-orange_detail

Mauritania_1967_Yvert_PA69-Scott_C65

Mauritania_1967_Yvert_PA69-Scott_C65_lilac-red