French map of Canada upper US ...i have no clue

good morning! i am ephemera challenged and would appreciate any info on this map.

my bf is of French Arcadia ancestry and is not interested in selling, but he has had this forever and hasn't been able to find any info...

it's framed behind glass so i apologize for the pics...thanks!

 

Looks awful bright and clear. Have you taken a magnifying glass to it?

 

It should be on laid paper. Have it out of the frame and look through it. Fine straight lines mean laid paper, google the term to find out more about it..

 

thanks! i borrowed this from the antiques roadshow site...

Maps Before 1800
But if the map that our flea-market shopper found was made before 1800, as its 1784 date claims, it should also be printed on a different kind of paper.

"Almost all maps made before 1800 used hand-laid paper," Chris says. This paper was made by hand rather than by machine, which came about later. It was made by pouring paper pulp into a wooden frame with a bottom of cross-hatched wire mesh, which would leave its pattern in the paper.

"If you pick up a map and hold it up to the light you'll see a series of close-together thin lines crossed about every inch or so by a perpendicular line," Chris says. "Those are called chain marks. It looks a little like the weave of a rug." Later papers made in the 19th century by machine don't have these cross-hatches.

i'll take a look see later and let you know what i find....

 

Make sure you look for a dot matrix.

 

http://www.houzz.com/photos/3626385...llaume-Delisle-traditional-prints-and-posters