The Ministerial Post Office on Corfou. Swiss 10H. PS posted from "MINISTARSKA*10.3.1917" with linear "T" and Serbian censorship canc. "CENSURE/MILITAIRE SERBE". On arrival "GENEVE*9.IV*17" taxed with 10c. The Swiss post card was not a reply card and therefore not valid for postage at the Ministarska post Office, explainint the "T" mark. It is unexplained why the Swiss post Office did not charge 20c. instead of 10c. Also, perhaps, because of the lack of postage there is no "POSTES SERBES" mark.