In alliance with Germany, Hungary annexed a portion of southern Czechoslovakia in the so called Treaty of Vienna.  For a short period, some Hungarian stamps were used in this territory with the use of a Czech or Hungarian cancel, usually with names in different languages.  The top cover has the Scout canceled with the generic "M. Kir Posta" Hungarian July 20 cancel and a locally created "RAHO" city handstamp.  In another example, a Hungarian cancel with the Czech city name of Kassa was available for use by Nov. 6.