The correct spelling of the German currency denomination, "wert mark," is "Wertmark". The IPA phonetic transcription of this word is /vɛrtmaʁk/. The "w" in "Wertmark" is pronounced as a "v" sound, as it is in most German words. The "e" and "a" in "Wertmark" are pronounced separately, as are the "r" and "t." The "m" and "a" are pronounced together as one syllable, making it sound like "mark." It is important to use the correct spelling and pronunciation when referring to this currency.