Postal Area: territory (e.g. state, province, dependent territory) to which the uniform application of postal regulations extends
Closed Postal Area: postal area from which new postage stamps are no longer expected due to changes in state law
Without Postal Area Information: post-age stamp or stamp impression in which the postal area is not stated in writing as in-tended design
since these official postage stamps were only permitted for domestic traffic no post-al area information was provided
Missing Postal Area Information: postage stamp in which no postal area is specified caused by error, mistake or printers waste
Double Postal Area Information: postage stamp with information about two independ-ent postal areas in which this postage was valid
Monolingual Postal Area Information: postage stamp or stamp impression in which the postal area is stated in a single language
Multilingual Postal Area Information: postage stamp or stamp impression in which the postal area is stated in multiple langu-ages
Colour As Postal Area Information: the same postage stamp where the postal area is indicated by the design print printing colour (e.g. postage due stamps in blue = Nether-lands, green = Curaçao, red = Dutch Indies, purple = Suriname)
Postal Area Parallel Issue: the same postage stamps that were issued at the same time in different postal areas