The post box egg designed by artist Benjamin shine was also among the three eggs to be stolen.
It was recovered in February.
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Rod Stewart and wife Penny Lancaster uploaded pictures to Instagram as they headed to Greenwich for his sold out gig.
The family heirloom was taken after the man was approached by a woman in The Crown pub in Soho.
He was found close to Harrow and Wealdstone station just before 7pm and was taken to a central London hospital.