There are two cars with prefix registration "A" (AF and AH) and these date from 1964 to 1973 so this photo is at least from 1964 onwards, but before 1975 as the taxis have not adopted the official livery of silver for the top half and red for the bottom half.
"London Ice Cream" was incorporated 11th May 1965 so we can date the photo further from 1965-1974.
Another clue is what you can't see - the Peak Tower I (1972-1994) is absent so we can narrow the date further to 1965-1971.
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There are two cars with…
There are two cars with prefix registration "A" (AF and AH) and these date from 1964 to 1973 so this photo is at least from 1964 onwards, but before 1975 as the taxis have not adopted the official livery of silver for the top half and red for the bottom half.
"London Ice Cream" was incorporated 11th May 1965 so we can date the photo further from 1965-1974.
Another clue is what you can't see - the Peak Tower I (1972-1994) is absent so we can narrow the date further to 1965-1971.