The majority of items during the pamphlet selection have data in LocatorPlus. Every one of the pre-1801 and about 50,000 19th and twentieth century pamphlets will not still have information in LocatorPlus. A lot of them are available by exploring from the Index-Catalogue on the Library from the Surgeon-General’s Office https://maps.app.goo.gl/4RRJnUstxVnoZ5sQ8