Featured WWI watercolor print?? Looking for any information!

This is a very strange case. At close examination, it looks like a watercolor drawing - I was actually surprised to see the number underneath. But Bronwen found an identical picture - with the same inscriptions - sold on French Ebay a few months ago. Perhaps an old aquatint print of a watercolor? The paper is definitely old. I wonder if the numbering and the signature beneath it was done by a third party, such as the person who reproduced these.

 

Haven't found much on le Poitevin himself, but so far no indication he personally made or oversaw prints like this.

The one in France does not appear to have the numbering & second signature:

 

Thank you all so much for the insightful information about this piece! I got so much more than I was hoping for!

 

Late to the party... but that was a good one.

Think of it as "crowdstorming" (that's a real word, btw)... [that's why good pics are so important too!]

 

I always wanted to be a brain cell when I grew up.

 

That was worth a reply: LOL

 

BTW, not that a frame always tells anything about what's in it, but I associate these pseudo-rustic frames with early 20th cent.

 

Just learned that they are, rightly or wrongly, known as Black Forest picture frames. E.G.,


https://www.rubylane.com/item/741898-Ax2e1743/Vintage-Watercolor-Landscape-Black-Forest-Frame