Romer

This illustration shows how the Romer is used. Here, we are plotting the reference 696018. The marks corresponding to (6, 8) on the Romer are lined up along the gridlines (69, 01). The hole near the corner yields the exact point, the church at [[Little Plumpton A reference card or Romer is a device for increasing the accuracy when reading a grid reference from a map. Provided by Wikipedia
1
by Romer
Published 1977
2
by Romer
Published 1968
3
by Romer
Published 2006
4
by Romer, David
Published 2001
5
by Romer, David
Published 2012
6
7
by Romer, Alfred Sherwood
Published 1971
8
9
10