According to this rare folding trade card issued by Dr. T. C. Burnette, he provided dental extractions with an option for nitrous oxide anesthesia “ALL HOURS” (upper left) in Oakland, California. For literacy-challenged patients, this trade card unfolds to reveal an etching (right) by “K. Oliver” of the exterior of Burnette’s office building. The back of the folded trade card (lower left) notes that extracting teeth with “Gas” cost 50 cents or about 5% beyond the $10 cost extracted from patients for dentures fitted after gas-free dental extractions. This trade card is part of the Wood Library-Museum’s Ben Z. Swanson Collection. (Copyright © the American Society of Anesthesiologists, Inc.)

According to this rare folding trade card issued by Dr. T. C. Burnette, he provided dental extractions with an option for nitrous oxide anesthesia “ALL HOURS” (upper left) in Oakland, California. For literacy-challenged patients, this trade card unfolds to reveal an etching (right) by “K. Oliver” of the exterior of Burnette’s office building. The back of the folded trade card (lower left) notes that extracting teeth with “Gas” cost 50 cents or about 5% beyond the $10 cost extracted from patients for dentures fitted after gas-free dental extractions. This trade card is part of the Wood Library-Museum’s Ben Z. Swanson Collection. (Copyright © the American Society of Anesthesiologists, Inc.)

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George S. Bause, M.D., M.P.H., Honorary Curator, ASA’s Wood Library-Museum of Anesthesiology, Schaumburg, Illinois, and Clinical Associate Professor, Case Western Reserve University, Cleveland, Ohio. UJYC@aol.com.