All the rates shown are for single letters. This is a ingle sheet of paper folded to form the entire with the address written on the outside. Two sheet of paper were charged at double and three sheets at treble the rates shown. Quadruple rates were applied to letters above one ounce in weight and ths again was doubled up for each additional ounce or part of.

Charge                    Distance

    2d                       Upto 40 miles
    4d                       Over 40 miles

1/4d per ounce (or part of) was charged for distances over 40 miles for multiple sheets.

These rates are the same as those introduced in 1660 with an increase in the fee for multiple sheets for a distance over 40 miles.