This series contains indexes of names of passport holders, giving the serial number and date of issue of each passport. There are no indexes for the period 1863 to 1873.
The search register of passport applications for 1851-1856, 1858-1862 and 1874-1903 has been digitised by an external company unassociated with The National Archives and are available through their website there may be a fee to access these records.
Records within this series are available to download as digital microfilm.