BellBoard

complib: https://complib.org/composition/42854
complib: https://complib.org/composition/42846
complib: https://complib.org/composition/42847

720 Doubles
by Paul M Mason (No.9)
I    4    O    H    2345
------------------------
-              3    3245
          -    2    2345
     -              3425
------------------------
3-part (5th obs)
True to all plain methods with lead head 125 giving 14253 or 13524
(eg. St Simon's B, St Nicholas B, Westminster II B & New B groups,
including asymmetric methods, Plain Bob & Reverse Canterbury)

720 Doubles
by Paul M mason (No.3)
O    I    4    H    2345
------------------------
-    -              3425 (PBPBPP)
-         2         3245 (PBPPPBPBP)
     -         2    3425 (PPBPBPPPB)
------------------------
3-part (5th obs)
True to all plain methods with lead head 125 giving 13524
(eg. St Nicholas B, Westminster II B & New B groups,
including asymmetric methods, & Plain Bob)

720 Doubles
by Paul M Mason (No.4)
O    I    4    H    2345
------------------------
     -              3245 (PPBPP)
-         -         2345 (PBPPPBP)
-         -         3245 (PBPPPBP)
     -         -    4235 (PPBPB)
------------------------
3-part (5th obs)
True to all plain methods with lead head 125 giving 13524
(eg. St Nicholas B, Westminster II B & New B groups,
including asymmetric methods, & Plain Bob)

masonbells.com