Reply To: Uncontracted Braille Volumes — use of Letter Sign Home › Forums › Braille Formats/Textbook › Uncontracted Braille Volumes — use of Letter Sign › Reply To: Uncontracted Braille Volumes — use of Letter Sign July 14, 2012 at 10:49 am #21543 joannavenneriParticipant Thank you Joanna, "m in numbers" is when the text refers to a letter (m) in a word (numbers). So, we both agree that the letter indicator isn't necessary in most situations. Katrina