Class A, less than 100 miles, one
shilling, equal to $0.33 U. S. currency.
Class B, between 100 and 200 miles, one
shilling and sixpence, equal to 0.50 U. S. currency.
Class C, over 200 miles, two shillings,
equal to 0.66 U. S. currency.
Class D, to Ireland, three to four
shillings, equal to 1.00 to 1.33 U. S. currency.