Borleigh Differential Doubles
- Classification
- Differential Doubles
- Place Notation
- 145.3.125.3.1.3.1.3.5.1,123
- Lead Head
- 21453 (Code: 23z)
- Symmetry
- Palindromic
- Hunt Bells
- None
- Lengths
- 20 rows per lead
120 rows per course (6 leads) - Similar Methods
- Different Only Over Half Lead
Lanyon Differential Doubles (3) - Download as image
- Numbers
Grid - Data Source and Copyright
- Details on the about page.