first day of issue postmark
postmark on a cover, postal card or stamped envelope franked on the first day the issue is authorized for use
Pronunciations
British English
/ˈfɜːst ˈdeɪ əv ɪsuː ˈpəʊstmɑːk/Open converterAmerican English
/ˈfɝst ˈdeɪ ʌv ˈɪʃu ˈpoʊstˌmɑɹk/Open converter
These IPA transcriptions are generated from the name above. Proper names may have other pronunciations, and current converter results may differ. How transcription works