#specialized philately

• Aerophilately — A specialized branch of philately dealing with the study and collection of special postage stamps (airmail stamps), labels, postmarks, and postal documents transmitted via air transport (airplanes, helicopters, zeppelins, or rockets). It tracks the evolution of postal rates and airways as well as aviation history reflected in documents.
• Aerophilatelist — A person or collector specialized in aerophilately; a specialist passionate about gathering, studying, classifying, and evaluating airmail stamps, flight postmarks, and postal documents that were actually transported by air via airplanes, helicopters, or airships.
• Aerophilatelist — The feminine form for the term aerofilatelist; a female collector specialized in aerophilately, dedicated to gathering, researching, and preserving airmail stamps, 'Par Avion' postal envelopes, and historical documents related to the transport of correspondence by air.