context: In 1896, he helped establish the Collectors Club of New York, and was later its president for a number of years.
source: Luff had become perhaps the most prolific philatelic writer of the age, with works ranging from the tutorial What Philately Teaches Us (1899) to the classic reference work The Postage Stamps of the United States (1902), and numerous articles in the AJP and Mekeel's Weekly Stamp News.
reference_original: Luff se había convertido quizás en el escritor filatélico más prolífico de la época, con obras que abarcaban desde el tutorial "What Philately Teaches Us" (1899) hasta la obra de referecia clásica "The Postage Stamps of the United States" (1902) y numerosos artículos en AJP y Mekeel's Weekly Stamp News.
reference_flipped: Luff se había convertido quizás en la escritora filatélica más prolífica de la época, con obras que abarcaban desde el tutorial "What Philately Teaches Us" (1899) hasta la obra de referecia clásica "The Postage Stamps of the United States" (1902) y numerosos artículos en AJP y Mekeel's Weekly Stamp News.