Casio Music - Check that vintage Casio PT-50 from 1983 🎼 Did you know that it was one of the first keyboards to have the ROM pack system? 🎹 📸 via IG/polaris_secondhand | Facebook
Casio PT-50 Keyboard - YouTube
Casio PT-30, PT-50, PT-31 | The PT-50 (center) is similar in… | Flickr
Casio PT-50 Keyboard | in Westminster, London | Gumtree
Casio PT50 has an error, need help plz : r/synthesizers