Dissected and linen-backed folding plan with marbled paper self-backs. Handsome and unusual circular map with concentric circles showing postal districts and extending from Welwyn to Stanford Le Hope to beyond Reigate to Slough. The center of the circle is a plan of London with the Thames River meandering across the through the map. Super details and the circles, county boundaries, parks etc. are nicely hand-colored. Lacking a slipcase.