Accounting machine.

Accounting machine.

Accounting machine.

[Machine.]

23rd Street and Madison Avenue. Photo of accounting machine at Metropolitan Life Insurance.

23rd Street and Madison Avenue. Photo of accounting machine at Metropolitan Life Insurance.

Simplex machine.

Simplex machine.

Small machine.

Large machine.

Large machine.

Large machine.

[Machine room.]

[Detail, machine.]

Small machine.

Small machine.

Large machine.

Simplex machine.

Machine closed.

Berg surfacing machine.