The penny postage was introduced on December 5, 1839.
Letters CarriedGross Revenue Net Revenue[A]
183976,000,00011,955,0008,170,000
1840169,000,0006,795,0002,505,000
1845271,000,0009,440,0003,810,000
1850347,000,00011,325,0004,020,000
1859545,000,00016,150,0007,230,000
1863642,000,00019,350,0008,950,000
[A] The British Post Office does not charge itself with interest upon the capital invested in the postal business; it charges itself only with interest upon the capital borrowed on account of the telegraphic business.

[58] Special Report from the Select Committee on the Electric Telegraphs Bill, 1868; Appendix, pp. 27 and 28; and q. 1,813 and following, and 2,439 and following. Compare: Hansard’s Parliamentary Debates, July 5, 1869, p. 1,219 and following, the Marquis of Hartington, Postmaster General.

[59]

18696,500,000 (estimated)
1870-719,850,000
1871-7212,474,000
1874-7519,253,000
1879-8026,547,000
1884-8533,278,000
1889-9062,403,000
1894-9571,589,000
1899-190090,415,000
1905-190689,478,000

In 1869 Mr. Scudamore revised his estimate of the number of messages in 1870-71, reducing it to 8,815,400. Hansard’s Parliamentary Debates, July 5, 1869, p. 1,219, the Marquis of Hartington, Postmaster General.

[60] Garcke: Manual of Electrical Undertakings. The current issues report the amount of these royalties. The Report of the Postmaster General, 1885, p. 9, and Parliamentary Paper, No. 34, Session of 1901, state that these royalties are included in the gross revenue of the telegraphs.

[61] Report of a Committee appointed by the Treasury to investigate the causes of the increased Cost of the Telegraphic Service since the Acquisition of the Telegraphs by the State, 1875, p. 6.

[62] Parliamentary Paper, No. 295, Session of 1902.

Proportion borne by operating expenses to gross revenue, after excluding from operating expenses all expenses properly chargeable to capital account. The capital account of the telegraphs having been closed in September, 1873, the Post Office, since that date, has charged to operating expenses all expenditures on account of extensions, the purchase of sites, and the erection of buildings.

Average percentage
of operating expenses
Range
1870-7157.24
1871-7278.94
1872-73 to 1874-7588.7785.13 to 92.40
1875-76 to 1884-8579.3472.27 to 85.50
1885-86 to 1891-9291.3187.72 to 95.30
1892-93 to 1900-0198.3095.43 to 101.07
1901-02 to 1905-06100.3899.69 to 108.06