I made a set for myself and put it on my worst bike. For fun. I am definitely keeping them on this bike.
You may not like it, but this what peak preformance looks like.
It is called a Mundo and it is made in West Germany. It came with Simplex derailers and shifters. I tried searching about it and nothing came up. The bottom bracket fits the standard size cups but but the right side is standard threaded like a French bike.