Which of the following is not considered an official government record?

Library reference or museum exhibitions are not considered official government records because they primarily serve the purpose of informational or educational exhibits rather than documenting the actions, policies, or functions of government agencies. Official government records typically include documents created or received by government entities in the course of their official duties, such as published doctrines, which are formal expressions of policy; geographical base maps, which assist in planning and governmental operations; and photographs taken during official ceremonies, which serve as a record of events and actions undertaken by government representatives. In contrast, exhibitions are meant for public consumption and do not fulfill the criteria of formal documentation that characterizes official records.