I know you posted this question months ago and the delayed response may be too late for your current transcription but I do have somthing to add to what Lindy said from the Math perspective. In sections 22.214.171.124 of the TG Guidelines there is a hierarchy for accommodating a long number line so that it will fit on one line and not have runovers. One of the options is to rotate the number line into a vertical position. I think this is the only place in the document that discusses vertical number lines other than the information about brailling box and whisker plots. When you have a vertical presentation of a number line there is no mention of including numeric indicators. The vertical number line should be brailled just as you would a horizontal number line, without the numeric indicators.