I found this stamp in some kiloware. It is similar to type AP3 for Czechoslovakia in the Scott catalog. However, Scott does not show a 30 heller denomination that I can find. Can anyone help me identify this stamp. Thanks.
The clue for determining whether the stamp is from Czechoslovakia or Bohemia & Moravia is the hyphen separating the country name. Without the hyphen, it's Czechoslovakia (see also Bohemia & Moravia Scott #1A for a definitive Czechoslovakia Scott #212 with the hyphen).
Not sure what year catalog you're using, but in the 2015 catalogs, the stamp is footnoted with the reference to the Bohemian & Moravia stamp.