The graphic shows the distribution of Dugdale's correspondence from 1636 to 1686. Click on a year in the table below for a list of the corresponding letters (the number in black shows the total number of letters for that year). Once you have the list of letters for a year, you may limit it to a single month.

1635
4
1636
5
1637
8
1638
14
1639
7
1640
8
1641
2
1642
2
1643
1
16441645164616471648
7
1649
7
1650
33
1651
19
1652
6
1653
11
1654
40
1655
21
1656
18
1657
13
1658
14
1659
9
1660
11
1661
8
1662
22
1663
60
1664
92
1665
66
1666
72
1667
53
1668
66
1669
34
1670
18
1671
16
1672
8
1673
14
1674
6
1675
15
1676
7
1677
35
1678
24
1679
15
1680
11
1681
15
1682
14
1683
19
1684
30
1685
40
1686
11