Burroughs J307 (courtesy of Ole Hagen Jensen)

Burroughs J600-202

(courtesy of Ole Hagen Jensen)

Burroughs Full Keyboard Adding Machine (Sterling)

(courtesy of Ole Hagen Jensen)

Burroughs Adding Machine

(courtesy of Ole Hagen Jensen)

Burroughs ABC Adding Machine

(courtesy of Ole Hagen Jensen)

Burroughs 9.10.01 (courtesy of Dan Ross)

Burroughs Advert

(courtesy of Dan Ross)

Burroughs advert

(courtesy of Dan Ross)

Burroughs advert

(courtesy of Dan Ross)

Burroughs Class 3 Adding Machine

(courtesy of Dan Ross/Bob Stalgaitis)

Burroughs Adding Machine

(courtesy of Dan Ross)

Burroughs Adding Machine

(courtesy of Dan Ross/Eduardo Madureira)

Burroughs Cash Register

(courtesy of Dan Ross)

Teaching how to use an adding machine

(courtesy of Bob Stalgaitis)

Girl carrying adding machine

(courtesy of Bob Stalgaitis)

Burroughs classic 5-column adding machine

(courtesy of Bob Stalgaitis)

Burroughs Adding Machine Logo

(courtesy of Bob Stalgaitis)

Burroughs Class 1 Adding Machine stamp

(courtesy of Bob Stalgaitis)

Burroughs Adding Machine from 1940s

(courtesy of Bob Stalgaitis)

Burroughs Adding Machine from 1920s

(courtesy of Bob Stalgaitis)