"He know what his right leg's for," quips Harold when joking about taking the horse to the pub. Courage Tavern Ale was then currently using the slogan "...it's what your right arm's for" in adverts.
"You ain't spoken to her for nigh on forty years," says Harold of Albert's wish to talk to his wife.
Harold is 40. His mother was Emily.
After she has draped herself around him, Harold refers to Madame Fontana as Fiona Richmond. Richmond was at that time an infamous actress and model renowned for her appearances in risqué sex comedies.