Remembering History: Old School Boston ‏@OldSchoolBoston Sign for Logan Airport Points South via Sumner Tunnel on Causeway Street Lindsay Square 1957 (courtesy mit-libraries)

Old School Boston ‏@OldSchoolBoston Sign for Logan Airport Points South via Sumner Tunnel on Causeway Street Lindsay Square 1957 (courtesy mit-libraries)

Old School Boston ‏@OldSchoolBoston Sign for Logan Airport Points South via Sumner Tunnel on Causeway Street Lindsay Square 1957 (courtesy mit-libraries)