ChinaFrench Colonies Middle Congo 1943 Env. to Oubangu-Chari
Registered Envelope bearing A.E.F. Yvert 123, 2f50 brown and Yvert 137, 10f blue tied by Brazzaville Moyen Congo double ring with Registered label and "Controle Postal A.E.F. Commission B" censor cachet with arrival in Bangui on reverse.
