A postcard shows the giant Radome that covers an antenna to receive satellite transmissions.

Bell Telephone System built the receiver-transmitter in Andover in 1962 as part of its Telstar project to use satellites to communicate telephone and television signals overseas.

When built, the Radome was the largest air-inflated structure in the world. It was 161 feet high and 210 feet across. Made of fabric and synthetic rubber, it would cover three acres if laid flat.