The caption on the first painting indicates this occasion was the coronation in 1937 of King George VI and Queen Elizabeth. The second painting is also dated 1937 and the decorations include crowns, indicating this was also celebrating the coronation.
The other five pictures bear no clear evidence as to the occasion. The lack of a full date suggests it was not the marriage of Prince George and Princess Marina, for which the paintings all bear the exact date. They are likely also of the coronation celebrations.
Any help identifying the location of the 2nd paintings would be appreciated.
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