Dentistry on stamps. Football.
Loevy
Hannelore T
HT
Kowitz
Aletha A
AA
D005538:Football / Q000266:history*; D049672:History, 19th Century; D049673:History, 20th Century; D009064:Mouth Protectors / Q000266:history; D010678:Philately; D014481:United States