What does the store clerk give Isabel In the novel Chains?

In the novel "Chains" by Laurie Halse Anderson, the store clerk gives Isabel a piece of paper that serves as a pass, allowing her to move more freely in the city. This moment is significant as it represents a small act of kindness and a glimmer of hope amid her struggles as an enslaved girl. The pass symbolizes the possibility of agency and freedom, even if only temporarily.