Above: Henry Grimler was a cocky, self-confident printer. He took a familiar text that any British or American printer worth his salt had already printed ...and he claimed that his was "improved" ...better than the previous editions.
He was right. (In my biased opinion.) Henry's edition of this standard grammar is better. At least it's better than the two editions that Google scanned online. (Or at least a few of Henry's ornaments are better, so he wasn't completely stretching the truth about his so-called improved edition.)
The grammar book is A New Guide to the English Tongue (undated) authored by British schoolmaster Thomas Dilworth.
A facsimile of a complete 1793 London edition is online Here . (It's the 54th edition, printed by Richard and Henry Causton.)
And, a facsimile of a complete 1820 New York edition by an anonymous printer is Here. (It has better cuts than Henry's edition. Actually, both these editons have better cuts than Henry's.)
Henry set his text with a dramatic collection of Caslon ligatures, which he showed off on that "Double Letters" page. Henry's excellent English fonts are straight off the Caslon type specimen sheet: Caslon's Pica Black, Pica Italick, etc.
By the time of the 1820 New York edition, many printers had stopped using the "long s". No more confusing the letter "s" with the letter "f." No more accidentally saying, "life, liberty and the purfoot of happinefs."
Although many printers printed this grammar book in the 18th and 19th centuries, this "improved" edition by Henry Grimler is rare, and seldom seen. Or at least it was seldom seen, until you saw it in here in cyberspace.
These Lutheran brothers, Henry and Benjamin Grimler, had set up their Lancaster print shop in 1804. The Grimlers published and printed the weekly newspaper Wahre Amerikaner (True American.) Henry eventually was elected to the Pennsylvania Legislature.
P.S. That 1920s fabric bird was made by a Mennonite seamstress in the Weaverland area of Lancaster County.