Mayfair/Piccadilly based itinerary for deco/30’s/40’s fan.
Luncheon: Back to Green Park and to Bentleys for Oysters and fish. Pricey but good and may have a set, cheaper lunch menu.
Dinner: The Dean Street Townhouse Hotel to try some of that English food (it is better than you think). Medium price
Evening: Go to a play, there will always be a Coward revival or a period musical to catch. At the moment the hot retro ticket has to be the 39 Steps at the Criterion Theatre. Reasonable.
• Best shopping for souvenirs (and best toilets): Fortnum and Masons.
• Best booze: Dukes Hotel for their legendary Martinis.