Michelin Map of Great Britain, No 12
Sheet 12 of 15 covering England, Wales & Scotland.
North to Northampton-Cambridge, West to Chipping Norton, South-west to Hungerford, South to Croydon, South-east to Ramsgate.
Codes: 4-4.690 3-2.664 2-4.687 3-2.675 & 12B 2517.37 - meaning? More details on Motoring maps are on the Publisher's page.
Scale correct at 11 miles = 87.5mm, or 3.2 miles/inch, ie 1:200,000.
Makes a big point of having Road Numbers on the map (introduced 1922); has Southend Arterial (1925) & East Ham bypass dualled (1928), but Stanford-le-Hope not bypassed (1929/35); no railway to Allhallows (opened 1932), so if between 1928 & 1932 estimate of 1930.