Annex 1  Operational provisions applying to Morse working
1     Morse code signals
2     Spacing and length of the signals
3     Transmission of signs for which there is no corresponding signal in the Morse code
        3.2     Multiplication sign
        3.3     Percentage or per thousand sign
        3.4     Inverted commas (quotation marks)
        3.5     Minute and second signs
4     Transmission of groups of figures and letters, of ordinal numbers or of fractions
1     Identical texts
1     Checking the number of words transmitted
2     Acknowledgement of receipt