It is a basic model one student flute with a RF (Ray Fabrizio) mod. The lower G hole is smaller to make high E easier without the trouble of a split E. The G# key needs to be elongated to go around the small hole. I think it was a $5 option but nothing really special value wise on a beginner flute. Judging from the crown, it would be sometime in the 1983-92 region. I use it on my flutes that are for sax players: https://www.flickr.com/photos/[email protected]/tags/bis/