Casio Tone Bank MT-260: My sister got this for Christmas in 1989... Used and abused all throughout our childhood and it still works wonders! : r/BuyItForLife
Casio CT-615, 210 Sound Tone Bank Electronic Keyboard and | Reverb
UL 9.0V AC DC Adapter For CASIO CTK-615 CT-615C 210 Sound Tone Bank Keyboard PSU | eBay
Casio Ct-615 Electronic Keyboard 210 Sound Tone Bank for sale online | eBay
Best Casio keyboards 2022 | MusicRadar
Casio CT-615 Tone Bank Synthesizer Keyboard Plus Stand | #165912745