Nearly All of products within the pamphlet assortment have data in LocatorPlus. The many pre-1801 and about fifty,000 19th and 20th century pamphlets don't but have data in LocatorPlus. Lots of them are available by hunting from the Index-Catalogue of the Library from the Surgeon-Standard’s Business The People today’s authorities https://maps.app.goo.gl/4RRJnUstxVnoZ5sQ8