Ключевые слова: anatomy, ancient, botkin, celebrity, clinical, clinician, collectible, collection, collector, communication, correspondence, country, date, delivery, doctor, famous, federation, great, history, illustration, known, macro, mail, mark, medical, medicine, message, national, object, old, overprint, paper, pathological, payment, perforated, perforation, petrovich, philatelic, philately, physician, picture, portrait, post, postage, postal, postmark, print, russia, russian, science, sergey, service, stamp, symbol, therapeutist, therapist, vintage,