The six dots of the Braille cell are arranged and numbered thus: The capital sign, dot 6, placed before a letter, makes it a capital. The numeral sign, dots 3, 4, 5, 6, placed before a character, makes it a number and not a letter. Braille punctuation marks are formed by using dots in the lower part of the cell. l l l l l l 1 2 3 4 5 6 l l l l ...