tab labeled with the bill denomination the sheets being scored for easier folding or unscored the sheets being interconnected at a place facilitating folding and bill insertion application_number US 74619676 A description the billfold file of this invention is generally indicated at 10 in fig1 and is for the purpose of receiving currency bills within a billfold generally indicated at 12 in fig4 and indicated in dotted lines at 12 in fig3 and 6 the billfold being one of a type which is folded only once in its center along a dotted line 16 seen in fig6 which is transverse to the elongation of the billfold and disposed at the middle between the ends 18 and 20 of the billfold distinction is to be made between the type of billfold which is shown at 12 and which is folded only once along the line 16 and a different type of billfold which is shown in fig5 and generally indicated at 30 and partially shown in dotted lines the latter billfold being of the type that is folded twice along the dotted lines 34 and 36 of fig5 and it will be understood that the lines 34 and 36 are approximately equidistant from a center of the billfold as measured between the ends 42 and 44 of the billfold this folding of a billfold of the type that is folded twice is better seen as regards the file 30 in fig6 where the folding areas are more accurately shown in detail.