Title: Bicentenary of Ordnance Survey. Maps of Hamstreet, Kent
Date: 17th September 1991
Material: Phosphorised paper
Stanley Gibbons catalogue numbers: 1578-1581
from left to right: Map of 1816, Map of 1906, Map of 1959 & Map of 1991
When I tidied up my bedroom and found out an album for GB stamps. What a surprise! I found that there are few stamps about the Ordnance Survey.