This green Astra Mixte has been on the New Hampshire/Vermont Craig's List for a bit; I think it is nice looking. That Mixte style is not though, in the style of Motobecane Mixtes I have seen. I'm not an expert but in that, it is different.
https://nh.craigslist.org/bik/5447762826.html


Definitely, this is a good deal and not moving.

So, maybe if this general style of Mixte is different than the Motobecanes, is it possible it could have been contracted out?