The Czechoslovakia Post-WWII 1947–52 Tachov Work Book (Pracovní Průkaz) Document is a rare and unique block stamp issued in the years 1941-1950 in the Czech Republic. This multi-color stamp features a design related to World War II and was issued on the first day of its release. The stamp is uncertified and in used condition, making it a valuable piece of history for collectors interested in Czechoslovakian stamps from this time period.