In Great Britain the federal Stamp Office collects tax on the transfer of many official documents, including annuities, when they are passed on by deceased persons to their heirs. A number of other countries have a similar tax on documents. When the tax is paid on the annuity, the Stamp Office traditionally stamps the annuity document as proof of payment. A receipt is also issued. Documents from as early as 1812, related to tax on annuities, can be found at Annuity Museum. Other than annuities, the Stamp Office has also taxed at one time or another everything from newspapers to mortgages to contracts to cheques. There was a time when stamps as well as currency were printed by the Stamp Office, though these functions have since been reassigned to other government departments.