WW1 French Binoculars

I have had the reference book "Doughboy To GI : US Army Clothing And Equipment 1900 - 1945" since I was a kid.  I liked watching old War Movies and was interested in the stuff the soldiers were using.  My Grandfather was also in the Army Air Forces during WW2.  My Mom had three Uncles in the Marine Corps.  My reference book was mainly just photos of one guy's collection of militaria and didn't have an example of every US Military issued item.  Sometimes I see something not in my extensive reference book.  I have been trying to make an effort to study equipment from other periods and nations.

This set of photos shows some Merchant Marine Paris made French Binoculars from the First World War.  They still have all the outside leather, most I have seen have the brass surface exposed and are missing the leather.  You can see that the stitching closing the leather has started to come undone due the the extreme age of these.  There is a shoe lace tied to them, which I have also seen on other pairs of WW1 French Binoculars.  The shoe lace 100% matches ones I have seen on a pair of 1930s US Officer's Horse Riding Boots.  They are an older vintage type of shoe lace from the early 20th Century.  These Binoculars are missing a rod used to adjust the magnification.  They are also marked "Day & Night", the French did share things with their English speaking Allies in WW1.