Reference
DV2/J22
Title
North of Upper Gravenhurst. Based on OS sheet XXII.14. Our OS reference equivalent OS25" 243
Date free text
c1925
Production date
From: 1924 To: 1940
System of arrangement
Maps were each given an alpha-numeric reference based on a grid where the letter refers to the column, starting with A on the left of the county, and the number refers to the row starting at the top of the county and working south.
Original will not be produced, digital file available via the searchroom public computer.
External document
Level of description
item