'On record-valued keyword cards this is the raw string value in
the ``<field-specifier>: <value>`` format stored in the card in order
to represent a RVKC.  Otherwise it is the card\'s normal value.'

@property
def rawvalue(self):

    if (self._rawvalue is not None):
        return self._rawvalue
    elif (self.field_specifier is not None):
        self._rawvalue = '{}:    {}'.format(self.field_specifier, self.value)
        return self._rawvalue
    else:
        return self.value
