Agent Bonnet needs to get back to the intersection and head right until she reaches the blue car. She looks under the hood and finds a lighter laying on the radiator (on the left). Following the "Better safe than sorry" rule she also takes the radiator plug. She also notices that the battery is brand new and may be of use (right then left click on it).
Proud of herself Nicole heads back to the bar and informs the archivist that he can finally smoke the cigar... that is until she realizes that there's no fuel in the lighter. This time however, fate goes easy on the FBI Agent as the table right behind the archivist has the equipment necessary to fill the lighter. Nicole fills it up and finally convinces the archivist to get back to work.
After getting into the archive Nicole heads towards the desk (closeup) and explains her case to the clerk. He is reluctant to help her, however as she's tailed by an agent from the bar. Nicole needs to drop the tail. She approaches the door and talks to the man convincing him to go away. Meanwhile agent takes a fuse from the box on the right side of the door. This forces the archivist to head into the back room and allows Nicole to look through the desk. She takes a rubber band laying next to the radio, a wooden clothes peg and the two R-20 batteries.