The Instrument of Consent is sealed with the Great Seal of the Realm, which is attached to the foot of the document by woven cords sealed within the Great Seal itself.
The design features maple leaves, the emblem of Canada, intertwined with roses and escallop shells, from Prince Harry's coat of arms.
It required descendants of King George II to get the sovereign's consent before they Wednesday, otherwise their marriages would be invalid.
Under British law, the first six people in the line of succession to the throne must obtain the queen's permission to Wednesday.
The Instrument of Consent is drafted by the Crown Office and illuminated on vellum, a material reserved only for important state documents. As without Queen's consent, Prince Harry would have been disqualified from the line of succession.
The Queen's signature, "Elizabeth R" can be seen at the top right of the document, which will be presented to the newlyweds after their wedding.
China Trade Surplus with US Grew Sharply in April
Consequently, the trade surplus totalled USD28.8 billion in April, above the expected level of USD27.75 billion. For January-April, China's trade surplus with the United States was $80.4 billion.
There are also olive branches, like those in the Great Seal of the US. The choice of an American pastor marks a break from custom as traditionally addresses at royal weddings are given by senior clergy from the Church of England.
Meghan's fairytale wedding will have similarities to that of Prince William and Kate Middleton in 2011 - the couple is even using the same Ascot.
After the wedding, the couple plans to leave Windsor Castle in a carriage for a roughly two-mile procession, traveling along the High Street through the town of Windsor before returning to the castle by the Long Walk, according to the Palace.
Fraser says he never wanted to be a Prince Harry copycat, but he wanted to find his essence to capture on screen.
Britain's Prince Harry will tie the knot with American actress Meghan Markle in a union of youthful royalty and Hollywood glamour expected to reinvigorate the venerable House of Windsor.
They will then return to Windsor Castle for a lunch reception, before Harry's dad Prince Charles throws an evening party for select guests.