According to Burden (230) this is the earliest map to show the correct north-south orientation of Lake Champlain and to represent Prince Edward Island accurately. It is considered one of the most important maps of the region of the early 17th century. It is interesting to note the different languages used: the cartouche is Latin, most place names are French and the cardinal points in the margin, Dutch.
This map contains elements from previous maps; most specifically, the cartouche is copied from De Vaugondy's 1755 map of Canada. The map is hand coloured with the colours showing the British and French possessions of the area covered. The atlas this map is from was published between 1776 and 1784. Sources consulted do not specify which printing this map is from although as the 1st state it was earlier, rather than later in this period.
The atlas this map is from is a typical example of a lot of atlas publications in the 19th century. Plates were used and reused by publishers over the course of many years and were transferred from one publisher to another with no, or very minor, changes. When a map is detached from its' atlas it becomes difficult to verify which atlas a map is from. Only by comparing it to known versions can conclusions be drawn. In this example, Greenleaf reissued an 1836 atlas of the same name by David Burr and at least 4 known versions were produced.
The 1836 publication of this atlas was the 1st edition. Virtually identical maps, with the exception of the publication information, appear in subsequent editions and atlases by Mitchell and others. The publication statement and the color palette definitively tie this to the 1836 publication.
While this is most likely from the 1838 edition of Bradford's atlas and Walter's notes indicate that, the color palette doesn't match other copies available online that are defintely from that atlas. However, the colors also vary between those maps.
Different sources have different publication dates for this atlas. The Library of Congress uses information from the supplementary index to date it to 1843. This is a fine steel engraving typical of Archer's work.
While Cary's maps of this area are almost indistinguishable from one another, the size of the map and the date indicate this was most likely published in "A New Elementary Atlas". The 1813 version of this map appears to be quite rare.
This map was apparently copied from Morse's American Geography. However because there are no notes on the map and the north eastern boundary between the United States and British North America (specifically New Brunswick and Quebec) had been under negotiation at various times since 1783 we can't determine which edition of American Geography it was copied from. The topic of the north eastern boundary would have been of interest at this time as it was finally resolved in 1842.
The following note accompanies this map and is signed by Walter: "This chart was given to me September 20, 1995 by Dr. John E. Dornbach of Seabrook, Texas. This is one of the two charts carried by Col. John H. Glenn on the first U.S. manned orbital flight in the Project Mercury Gemini capsule Friendship 7, February 20, 1962. The three-orbit flight covered approximately 130,000 km. in 4 hours, 55 minutes. Dr. Dornbach was the person responsible for producing this chart for Aeronautical Chart and Information Center at that time. Later he was transferred to N.A.S.A. to produce the Lunar lander maps and ultimately became the Director of the Earth Resources branch at NASA. John Dornbach was a classmate of mine in the Geography Graduate School at Clark University, Worcester, Mass. in 1950-52. Walter K. Morrison."