The term "Fountain Pen Hospital" refers to a renowned, family-run business in New York City that specializes in fountain pens. It has been operating for over 50 years, dating back to the 1940s, and is particularly famous for its expertise in repairing fountain pens as well as selling fine writing instruments, including brands like Montblanc, Waterman, Parker, and Sheaffer. The shop is located at 10 Warren Street in Lower Manhattan. It has a rich history of serving a loyal clientele, including notable figures, and has evolved with changing times by focusing on the niche market of luxury and vintage fountain pens. The store also has a reputation for excellent customer service, knowledgeable staff, and a wide selection of pens and accessories. Regarding "hospital," in this context, it does not relate to a medical hospital but rather to the care and repair services provided for fountain pens, metaphorically referred to as a "hospital" for pens. If the query also concerns the literal meaning of a fountain pen or hospital separately, please specify for more focused information. This summary is based on multiple sources that describe the Fountain Pen Hospital's history, offerings, and customer experiences in New York City.