Meckwell 2003

1¨-1ª-3§=Limit,

           3ª,0-1©

3¨=ASK distrib

3¨-3©=3-1-4-5

3¨-3ª=3-1-5-4

3¨-3NT=3-0-5-5

3ª=Signoff

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This info is acc. to Meckwell principles but is a private interpretation. Other interpretations are possible