philatelist
A philatelist is a person who studies and collects stamps and postal history. The practice, called philately, encompasses the acquisition, organization, preservation, and analysis of postage stamps and related objects such as covers, postmarks, and postal stationery. While many philatelists primarily collect stamps for their design, rarity, or condition, others focus on postal history and the routes, rates, and services reflected by mailed items. Philately is a hobby, a field of study, and a form of historical research.
Collectors may specialize by country, era, or theme; common areas include stamp varieties, perforations, watermarks, plate
Prominent philatelic organizations include the Royal Philatelic Society London, founded in 1867; the American Philatelic Society,