Canada, Dominion. Authorization Letters For Prisoners Reporting For Military Service GTRexclude the obverse centre presents the the obverse centre presents the cipher of Ahmad I ibn Mustafa the handle with a beaded design and loose fitting embedded synthetic ivory plates on both sides with the signature stamp of Inspector W in view of the provisions of the Military Service Act 1917 and the proclamation which was published on the 13th instant that the convicts in the penitentiaries and provincial jails whose cases are not too serious to admit to any executive clemency and who are within the class called out should be required to report for military service