We had been at the Pictures (cinema) in Stirling and when we came out there was a large crowd heading for the station so we followed to see what was happening. It transpired that the Queen and DofE had been at a reception in Stirling Castle and were about to depart on the Royal train.
Her Majesty and the Duke appeared at the open carriage window in full evening dress, complete with tiara, the Queen somewhat dwarfed by the Duke just behind her. There was a smattering of muted applause and cheering. Then the Queen half turned and looked up to her husband to make some remark. At this point my incorrigible Father's voice boomed out, echoing round the station. 'Look folks - it's Chic Murray and Maidie'. The crowd, recognising the similarity between the Queen's pose and that of Maidie when she spoke up to her tall husband Chic, roared with laughter, cheered and applauded. The Queen, quite oblivious to the cause of this outburst, acknowledged the cheers, which redoubled when she once again turned to speak to the Duke.
Although I have seen the Queen on several occasions since then, she has not mentioned this incident - neither have I (until today).