N.H. Rev. Stat. Ann. § 20:10

The publications authorized under RSA 20:9 shall be distributed as follows: one copy to each city and town in the state, one copy to such of the public libraries requesting them, 50 copies to the New Hampshire Historical Society, 50 copies to the state library and the remainder to be placed in the custody of the secretary of state, who is authorized to exchange the same for similar publications by other states.