All two-cent pieces were minted at the Philadelphia Mint, and bore no mint mark.

Entity and relation annotations:
id: 0
type: entity
value: text: two-cent pieces
labels: <Production>
id: 1
type: entity
value: text: the Philadelphia Mint
labels: <Organization>
type: relation
to_id: 0
labels: Organization:develops/produces/sells:Production
from_id: 1