Besides its extensive collection of telephones manufactured from the late 1880s through 2000s, the Jefferson Barracks Telephone Museum also contains:
A working Central Office Step Switch.
Operator switchboards from the 1920s and 1960s.
Military telephones from WWI through the Vietnam War.
Hundreds of telephone-related equipment and tools.
A telephone pole complete with climbing equipment.
Hundreds of pieces of telephone-related memorabilia from the 1880s through the 2000s.
A large variety of novelty telephones.
A sculpture of Alexander Graham Bell and replicas of his 1876 Liquid Transmitter and 1877 First Commercial Telephone.