Comrade Popov was taking trips to various cities. From Warsaw
he sent back a postcard: Greeting from Free Warsaw. From Czechoslovakia
on the next trip he wrote: Greeting from Free Prague. He traveled on to
Bulgaria and wrote back: Greetings from Free Sofia; and then to Hungary,
writing a card back: Greetings from Free Budapest. Finally he reached
Vienna and wrote his last card: Greetings from Free Popov.