Actually quite prophetic.

The caption talks of the forthcoming London Flypast of 20th September. It doesn’t say the year but logically it is 1959.

TE476, the Spitfire in the photograph, bellied in at Martlesham Heath on the 12th September 1959, to be grounded for some 36 years.

SL574, the other BBMF Mk XVI, performed the Flypast on the day, the 20th September, and bellied in on the OXO sports field at Bromley, never to fly again.

Mark

The caption is dated 24/08/59 Mark12 (bottom right), your spot on.