Greeting card signed by Queen Elizabeth II. and Prince Philip of Edinburgh

Every year, the royal houshold of Elizabeth II. (1926-2022) and her husband Prince Philip (1921-2021) received a Holiday greeting card with autograph signatures, and usually - as in our case - with a photo of the royal couple and their children (less often with a painting).
With the royal coat of arms on the first page. Date unknown.
The dimensions of the photo: 150 x 115 mm (unfolded page 210 x 340 mm).