Secondly, the London postal district, created in 1858, did not conform to any county boundaries and did not coincide with either the County of London in 1889 (which was somewhat smaller) or Greater London in 1965 (which was much bigger).
Secondly, the London postal district, created in 1858, was both a post town and a postal county. It did not conform to any county boundaries and did not coincide with either the County of London in 1889 (which was somewhat smaller) or Greater London in 1965 (which was much bigger).