The vast majority of things during the pamphlet collection have data in LocatorPlus. All of the pre-1801 and about 50,000 nineteenth and 20th century pamphlets usually do not yet have documents in LocatorPlus. A lot of them can be found by browsing from the Index-Catalogue of your Library of the https://maps.app.goo.gl/4RRJnUstxVnoZ5sQ8