New Delhi Differential Doubles

Classification
Differential Doubles
Place Notation
3,145.3.125.3.1.3.1.3.5.345
Lead Head
21453 (Code: 4z)
Symmetry
Palindromic
Hunt Bells
None
Lengths
20 rows per lead
120 rows per course (6 leads)
Similar Methods
Amberley Differential Doubles
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Numbers
Grid
Data Source and Copyright
Details on the about page.