The British government formed the Passport Service in the same year and in 1921 began issuing 32-page passports with a navy blue hardcover with an embossed coat of arms. "BRITISH PASSPORT" was the common identifier printed at the top of all booklets, while the name of the issuing government was printed below the coat of arms (e.g. United Kingdom, New Zealand, Hong Kong). Cut-outs in the cover allowed the bearer's name and the passport number to be displayed. This format would remain the standard for most British passports until the introduction of machine-readable passports in 1988. It continued to be issued in the United Kingdom until the end of 1993.