This is a rare wooden recorder, a German-style recorder like those used in elementary schools. The wood is likely maple, the same as that used for bassoons. This is a soprano recorder made by Schreiber, a famous high-end bassoon maker. It's probably quite rare as they are not often available. The tone is somewhat unique, with a soft sound that slightly resembles a shakuhachi (Japanese flute), becoming clearer in the higher registers. This item has been stored at home for a long time. There is a small chip on the mouthpiece.