I have two mixte bikes, 1982 and 2018.
The history of the mixte bike frame design traces back to a sketch drawing in a German publication of the year 1901 including several dozen sketches of only potential bicycle frames, many inspired by the 19th century Age of Iron such as of trestle train bridges crossing rivers, etc., the design then developed and made by German, Dutch and English bike makers before the French made them and added the mixte name.
More than a dozen year ago, Velouria presented Lovely Bicycle;
https://lovelybike.blogspot.com/2010...ifference.html