Related Clues:
- Ink spot
- Amtrak high-speed train
- 150-miles-per-hour Amtrak train
- Pouting person's action
- Notary's item
- Speedy express
- Fast Amtrak train
- Letter attachment
- Feature of a certain album
- Album item
- Amtrak train that averages 86 MPH
- Amtrak train often taken by Joe Biden
- Philatelist's concern
- Piece of postage
- Inverted Jenny is a rare one