Reply To: Title page format: Formats & Instruction Manual
According to 1.12.1c and example 1-16 of Braille Formats, we are to omit the hyphen between the letter and the number in G-1. So your braille pages should be G1-G12. If you had braille pages x-xiii you would use a hyphen and it would represent pages x through xiii, not x and xiii. The concept there is the same.
Cindi