In the Commonwealth realms, one can receive a message from the monarch for 60th, 65th, and 70th wedding anniversaries, and any wedding anniversary after that. This is done by applying to Buckingham Palace in the United Kingdom, or to the Governor-General's office in the other Commonwealth realms.
In Canada, one can also receive a message from the Governor General for 50th and 55th anniversaries.
The situation is similar in Australia, where one can receive a letter of congratulations from the Governor-General on the 50th and all subsequent wedding anniversaries; the Prime Minister, the federal Opposition leader, local members of parliament (both state and federal), and state Governors may also send salutations for the same anniversaries.
In the United States, one can receive a greeting from the President for any wedding anniversary on or after the 50th.
Roman Catholics may apply for a Papal blessing through their local diocese for wedding anniversaries of a special nature (25th, 50th, 60th, etc.).
So ten years until the Queen has to step up the plate though President Obama would be on the case if we were Yanks.
Normal service will be resumed after the weekend.