The link you followed will bring you to this page:

https://www.davidrumsey.com/ll/detailView.html?manifestUrl=https%3A%2F%2Fwww.davidrumsey.com%2Fluna%2Fservlet%2Fiiif%2Fm%2FRUMSEY%7E8%7E1%7E303661%7E90074314%2Fmanifest&os=0&lc=RUMSEY%7E8%7E1&baseUrl=%2F%2Fwww.davidrumsey.com%2Fluna%2Fservlet%2Fas%2Fsearch&mediaType=Image#?c=0&m=0&s=0&cv=0&r=0&xywh=41341%2C17573%2C18091%2C7984