Telephone, New York Telephone Co. Exchanges.

[New York City Telephone Exchange.]

Telephone, New York Telephone Co. Exchanges.

Telephone, New York Telephone Co. Exchanges.

[Fire Alarm System.]

Communications, Telephone Exchange.

[Telephone operators.]

Communications, Telephone Exchange.

[Fire alarm box.]

[Telephone operators.]

Communications, Telephone Exchange.

[Telephone operators.]

Communications, Telephone Exchange.

Communications, Telephone Exchange.

[People observing telephone operators.]

Communications, Telephone Exchange.

228 East 56th Street. New York Telephone Building

[The New Yorker, fire boat.]

Telephone Exchange 1896 Cortlandt St. West Wing.

[Telephone Exchange 1896 Cortlandt St. West Wing.]