1919 undelivered off. Reg letter with C.O.D. on/for 1,90CZK sent inland and consequently redirected to Germany, postal-charge 55h (20h + 25h after/behind R + 10h předložné) paid mixed franking Hradčany 25h blue + Austrian stamp. Charles 30h violet, posting nationalized CDS PRAGUE 5/ 19.II.19, addressed to to Břeclav, sent back with remark unknown on reverse, consequently to Wrocław (Wroclaw) and odsud sent back to Prague; unprofessionally open envelope with light fold, exceedingly rare mixed franking on/for C.O.D. mailing!