File:Nigeria 1949 Mi 69 stamp (75th anniversary of the UPU. UPU Monument, Bern, Switzerland).jpg
![File:Nigeria 1949 Mi 69 stamp (75th anniversary of the UPU. UPU Monument, Bern, Switzerland).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/8/82/Nigeria_1949_Mi_69_stamp_%2875th_anniversary_of_the_UPU._UPU_Monument%2C_Bern%2C_Switzerland%29.jpg/780px-Nigeria_1949_Mi_69_stamp_%2875th_anniversary_of_the_UPU._UPU_Monument%2C_Bern%2C_Switzerland%29.jpg?20220529074451)
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