Models for braille title pages appear in Lesson 19 of the NLS Instruction Manual (6th Ed. & 2015 Ed., both p. 19-7). The two model title pages present title page information as mix of “nested list” format and 1-3 format. The models do not match the 1-3 format given in BF 2011, p. 2-34, Sample 2-9: U.S. Title Page.
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.
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.