Louis Lot is one of the top makers of Boehm flutes in the "French" style. He got the patent rights directly from Boehm, and is the inventor of the open hole, inline style of flute. Lot flutes are absolutely top quality. I had trouble believing that he also made recorders, but indeed a Google search turns up what seem to be credible references. This could be quite a valuable instrument, given the fame and reputation of L. Lot flutes, and by the fact that he made (apparently) very few recorders.